CN113751162A

CN113751162A - Kitchen waste desanding, crushing and impurity removing integrated pretreatment equipment

Info

Publication number: CN113751162A
Application number: CN202111079390.2A
Authority: CN
Inventors: 高博; 曾毅夫; 叶明强; 朱泽民
Original assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Current assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-12-07

Abstract

The utility model relates to a kitchen garbage handles technical field, provides a kitchen garbage degritting breakage edulcoration integration preliminary treatment equipment, include: the crushing and stirring tank comprises a tank body, a crushing and stirring assembly and a screening plate, wherein a feed inlet is formed in the top of the tank body, annular plates protruding inwards in the axial direction are arranged at the bottom of the tank body, slurry gathering grooves are formed among the annular plates, slag gathering grooves are formed between the annular plates and the side wall of the tank body, the screening plate is arranged on the annular plates, and the crushing and stirring assembly is arranged on the axis of the tank body. After the kitchen waste is subjected to the stirring and crushing effects of the crushing and stirring assembly, the solid slag is thrown to the side wall of the tank body by the crushing and stirring assembly, and drops in the slag collecting tank along the side wall, and other slurry flows into the slurry collecting tank through the screening plate, so that the solid slag and the slurry are separated, the structure of the equipment is small, the equipment failure rate is reduced, and the cost is reduced.

Description

Kitchen waste desanding, crushing and impurity removing integrated pretreatment equipment

Technical Field

The application belongs to the technical field of kitchen waste treatment, and more specifically relates to a kitchen waste degritting, crushing and impurity removing integrated pretreatment equipment.

Background

The traditional treatment process of the kitchen waste is not only incineration, but also resource treatment by adopting an anaerobic fermentation process. In the anaerobic fermentation pretreatment process stage, due to the fact that the number of pretreatment equipment is large and the failure rate is high, the influence that the equipment cannot normally operate is often brought to the pretreatment stage, and even the situation that the rear end generates unstable methane or the methane is equal in quality is caused. Therefore, how to simplify the pretreatment process equipment and improve the pulping efficiency becomes a key ring of the anaerobic treatment of the kitchen waste.

Although the utilization value of the kitchen waste is high, the kitchen waste cannot be well utilized at the rear end due to the fact that excessive impurities are mixed in the kitchen waste. Therefore, the continuous and stable operation of the kitchen waste pretreatment equipment, the high-efficiency separation of heavy substances and light substances and the pulping become a key ring for the rear-end treatment of the kitchen waste. The current kitchen waste treatment equipment is complex in structure, for example, Chinese patent (application number 2015101731672) discloses a kitchen waste homogenizing and impurity removing device, wherein feeding, sand removing, slag removing, slurry discharging and the like are all screw machine structures, the structure is multiple, the structure is complex, the cost is high, fault points are multiple, and follow-up maintenance is troublesome.

Disclosure of Invention

An object of the embodiment of the application is to provide a kitchen garbage degritting, crushing and impurity removing integrated pretreatment equipment to solve the technical problem that in the prior art, kitchen garbage pretreatment equipment is high in cost due to multiple structures, multiple fault points and the like.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a kitchen garbage degritting breakage edulcoration integration preliminary treatment equipment, includes: the crushing and stirring tank comprises a tank body, a crushing and stirring assembly and a screening plate, wherein a feed inlet is formed in the top of the tank body, annular plates protruding inwards in the axial direction are arranged at the bottom of the tank body, slurry gathering grooves are formed among the annular plates, slag gathering grooves are formed between the annular plates and the side wall of the tank body, the screening plate is arranged on the annular plates, and the crushing and stirring assembly is arranged on the axis of the tank body.

In one embodiment, the crushing stirring assembly includes: locate jar motor at body top, locate jar epaxial (mixing) shaft of body and locate broken stirring rake of spiral on the (mixing) shaft.

In one embodiment, the distance between the spiral crushing stirring paddle and the stirring shaft is gradually changed.

In one embodiment, the distance between the spiral crushing stirring paddle and the stirring shaft increases with the distance from the motor.

In one embodiment, the tank body is provided with a slag discharge pipe connected with the bottom of the slag gathering groove, and the slag discharge pipe is provided with a slag discharge valve.

In one embodiment, the slag discharge pipe is provided with four slag discharge pipes at equal intervals around the tank body.

In one embodiment, the slurry gathering groove is a trapezoidal groove or a conical groove, a slurry discharging pipe is arranged at the bottom of the slurry gathering groove, and a slurry pumping valve is arranged on the slurry discharging pipe.

In one embodiment, a bin gate for opening and closing the feed inlet is arranged on the tank body.

In one embodiment, the bottom of the slag gathering tank is provided with a circle of aeration pipes, and the aeration pipes are connected with aeration equipment.

In one embodiment, the bottom of the slurry gathering tank is provided with an air inlet pipe, and the air inlet pipe is connected with an aeration device.

The application provides a kitchen garbage degritting breakage edulcoration integration preliminary treatment equipment's beneficial effect lies in: after the kitchen waste is subjected to the stirring and crushing effects of the crushing and stirring assembly, the solid slag is thrown to the side wall of the tank body by the crushing and stirring assembly, and drops in the slag collecting tank along the side wall, and other slurry flows into the slurry collecting tank through the screening plate, so that the solid slag and the slurry are separated, the structure of the equipment is small, the equipment failure rate is reduced, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic front view structure diagram of a kitchen waste sand removal, crushing and impurity removal integrated pretreatment device provided in an embodiment of the application;

FIG. 2 is a schematic view of a top view structure of the kitchen waste desanding, crushing and impurity removing integrated pretreatment equipment provided by the embodiment of the application.

Wherein, in the figures, the respective reference numerals:

1. a tank body; 11. a feed inlet; 12. a ring plate; 13. slurry gathering tank; 14. a slag gathering tank; 2. a crushing and stirring component; 21. a motor; 22. a stirring shaft; 23. a spiral crushing stirring paddle; 3. a screening plate; 4. a slag discharge pipe; 41. a slag discharge valve; 5. a slurry discharge pipe; 51. a slurry pumping valve; 6. an aeration pipe; 7. an aeration device; 8. an air inlet pipe.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and fig. 2, a kitchen waste sand removal, crushing and impurity removal integrated pretreatment device provided by the embodiment of the application is now described. This kitchen garbage degritting breakage edulcoration integration preliminary treatment equipment includes: the kitchen waste crushing and stirring tank comprises a tank body 1, a crushing and stirring component 2 and a screening plate 3, wherein the tank body 1 is approximately of a cylindrical structure, and the top of the tank body 1 is provided with a feeding hole 11 for pouring kitchen waste; the bottom of the tank body 1 is provided with ring plates 12 which are inwards convex in the axial direction, and slurry gathering grooves 13 are arranged between the ring plates 12 and used for collecting slurry; a slag collecting groove 14 is arranged between the ring plate 12 and the side wall of the tank body 1 and used for collecting solid slag, and the screening plate 3 is arranged on the ring plate 12 and used for separating the solid slag from slurry, preventing the solid slag from entering the slurry collecting groove 13 and ensuring the solid-liquid separation effect; the crushing and stirring assembly 2 is arranged on the axis of the tank body 1, so that centrifugal force can be generated during working, and the effects of crushing, stirring and solid-liquid separation of the kitchen waste are realized.

In this embodiment, after kitchen garbage passes through the stirring crushing effect of broken stirring subassembly 2, the solid sediment is got rid of jar lateral wall 1 by broken stirring subassembly 2 to drop in gathering slag groove 14 along the lateral wall, other thick liquids flow into after screening board 3 and gather in thick liquid groove 13, thereby realize the separation of solid sediment and thick liquid, the structure that this equipment used is few, has reduced equipment failure rate, the cost is reduced.

In the present embodiment, the crushing stirring assembly 2 includes: the stirring device comprises a motor 21 arranged at the top of the tank body 1, a stirring shaft 22 arranged on the axis of the tank body 1 and a spiral crushing stirring paddle 23 arranged on the stirring shaft 22. The motor 21 drives the stirring shaft 22 to rotate when in work, the stirring shaft 22 drives the spiral crushing stirring paddle 23 to rotate when in rotation, and the spiral crushing stirring paddle 23 crushes the kitchen waste and throws solid slag onto the side wall of the solid in the rotation process. Wherein, the crushing size of the kitchen waste by the spiral crushing stirring paddle 23 is controlled by controlling the rotating speed of the motor 21. For example, when the motor 21 rotates at a relatively low speed, the solid matter in the kitchen waste is crushed into particles of 5-10mm, and when the motor 21 rotates at a relatively high speed, the solid matter in the kitchen waste is crushed into particles of 1-3mm, so that the size of the crushed kitchen waste can be changed according to actual requirements.

In this embodiment, the distance from the spiral crushing stirring paddle 23 to the stirring shaft 22 is gradually changed, so that the kitchen waste in the tank body 1 can move transversely and axially, and the solid-liquid separation effect is ensured. Specifically, the distance between the spiral crushing stirring paddle 23 and the stirring shaft 22 increases with the distance from the motor 21, that is, the spiral crushing stirring paddle 23 is arranged in a spiral gradual change manner with the size from top to bottom.

In this embodiment, the tank body 1 is provided with a slag discharge pipe 4 connected with the bottom of the slag collecting tank 14, the slag discharge pipe 4 is provided with a slag discharge valve 41, the slag discharge pipe 4 and the slag discharge pipe 4 are used for discharging solid slag in the slag collecting tank 14, the solid slag is divided into heavy slag and light slag, and the heavy slag and the light slag can be separately collected.

Specifically, four slag discharge pipes 4 are arranged around the tank body 1 at equal intervals, so that solid slag in the slag collecting groove 14 can be effectively discharged. Of course, the number of the slag discharge pipes 4 may be increased or decreased as appropriate. The slag discharge pipe 4 is obliquely arranged, so that the solid slag can automatically fall off under the self gravity.

In the embodiment, the slurry gathering groove 13 is a trapezoidal groove or a conical groove, so that the slurry can be gathered; the bottom of the slurry gathering tank 13 is provided with a slurry discharging pipe 5, the slurry discharging pipe 5 is provided with a slurry pumping valve 51, and the slurry discharging pipe 5 and the slurry pumping valve 51 are used for discharging slurry to the next procedure for anaerobic fermentation.

In this embodiment, be equipped with the bin gate of opening and close feed inlet 11 on jar body 1, the bin gate can prevent that the kitchen garbage in jar body 1 from spilling at the stirring in-process.

In the embodiment, a circle of aeration pipes 6 are arranged at the bottom of the slag collecting tank 14, and the aeration pipes 6 are connected with aeration equipment 7; in this way, the aeration device 7 and the aeration pipe 6 aerate the slag gathering tank 14, so that the solid slag and the light slag can be layered, and the solid slag and the light slag can be separately collected.

In this embodiment, the bottom of slurry gathering groove 13 is equipped with intake pipe 8, and intake pipe 8 is connected with aeration equipment 7, and intake pipe 8's effect can play the mediation to screening board 3, prevents that screening board 3 from blockking up. In the present embodiment, the aeration device 7 may be a blower. In this embodiment, a gas collecting pipe may be disposed at the top of the tank 1, and the gas collecting pipe is used to guide the gas in the tank 1 into the exhaust gas treatment device, so as to prevent air pollution.

In this embodiment, just can realize functions such as the breakage of kitchen garbage, solid-liquid separation in jar body 1, use the structure few, reduce the fault rate of equipment, simultaneously through motor 21 rotational speed, can control thick liquids diameter to follow-up anaerobic fermentation efficiency can be improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a kitchen garbage degritting breakage edulcoration integration preliminary treatment equipment which characterized in that includes: the novel tank comprises a tank body (1), a crushing and stirring assembly (2) and a screening plate (3), wherein a feeding hole (11) is formed in the top of the tank body (1), an axially inward convex ring plate (12) is arranged at the bottom of the tank body (1), a slurry gathering groove (13) is formed between the ring plates (12), a slag gathering groove (14) is formed between the ring plates (12) and the side wall of the tank body (1), the screening plate (3) is arranged on the ring plates (12), and the crushing and stirring assembly (2) is arranged on the axis of the tank body (1).

2. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 1, characterized in that: the crushing and stirring assembly (2) comprises: locate jar motor (21) at body (1) top, locate jar (1) epaxial (mixing) shaft (22) and locate broken stirring rake (23) of spiral on (mixing) shaft (22).

3. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 2, characterized in that: the distance between the spiral crushing stirring paddle (23) and the stirring shaft (22) is gradually changed.

4. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 3, characterized in that: the distance between the spiral crushing stirring paddle (23) and the stirring shaft (22) is increased along with the distance from the motor (21).

5. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 1, characterized in that: the slag discharging pipe (4) connected with the bottom of the slag collecting groove (14) is arranged on the tank body (1), and a slag discharging valve (41) is arranged on the slag discharging pipe (4).

6. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 5, characterized in that: the slag discharge pipes (4) surround the tank body (1) and are arranged in four at equal intervals.

7. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 1, characterized in that: gather thick liquid groove (13) and be dovetail groove or toper groove, the bottom of gathering thick liquid groove (13) is equipped with arranges thick liquid pipe (5), it is equipped with slurry pumping valve (51) on arranging thick liquid pipe (5).

8. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as claimed in claim 1, characterized in that: and a bin door for opening and closing the feed inlet (11) is arranged on the tank body (1).

9. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as recited in any one of claims 1 to 8, characterized in that: the bottom of the slag gathering tank (14) is provided with a circle of aeration pipes (6), and the aeration pipes (6) are connected with aeration equipment (7).

10. The kitchen waste sand removal, crushing and impurity removal integrated pretreatment equipment as recited in any one of claims 1 to 8, characterized in that: an air inlet pipe (8) is arranged at the bottom of the slurry gathering tank (13), and the air inlet pipe (8) is connected with the aeration equipment (7).