CN-224199372-U - Pretreatment device and kitchen waste treatment system

CN224199372UCN 224199372 UCN224199372 UCN 224199372UCN-224199372-U

Abstract

The utility model discloses a pretreatment device and a kitchen waste treatment system, wherein the pretreatment device comprises a impurity removal unit, an adjusting unit and a sand removal unit, the impurity removal unit is provided with an impurity removal inlet end and an impurity removal outlet end and is used for removing settled sand, the adjusting unit is provided with an adjusting cavity, the adjusting cavity is communicated with the impurity removal outlet end and is provided with a discharge hole which is communicated with an anaerobic device, the sand removal unit comprises a stirring structure, an output pipe and a pump body, the stirring structure is arranged at the adjusting unit and is positioned at the bottom of the adjusting cavity, the liquid outlet end of the output pipe is communicated with the impurity removal inlet end, the liquid inlet end of the output pipe is communicated with the bottom of the adjusting cavity, and the pump body is arranged at the output pipe. The pretreatment device in the scheme can realize the non-shutdown cleaning of the accumulated materials at the bottom of the adjusting unit, improves the treatment efficiency of kitchen wastes, and realizes the recycling of the cleaned materials, thereby improving the recycling rate of the kitchen wastes.

Inventors

CHEN ZHEN
DENG JINHUA
LI XIA
DENG TIANCHENG
CHEN JIGUANG
ZHANG YONG

Assignees

武汉天基生态能源科技有限公司

Dates

Publication Date: 20260505
Application Date: 20250401

Claims (10)

1. A pretreatment apparatus, comprising: The impurity removing unit is provided with an impurity removing inlet end and an impurity removing outlet end and is used for removing settled sand; The adjusting unit is provided with an adjusting cavity which is communicated with the impurity removing outlet end and is provided with a discharge hole communicated with the anaerobic device, and The sand discharge unit comprises a stirring structure, an output pipe and a pump body, wherein the stirring structure is arranged at the bottom of the adjusting unit and positioned at the bottom of the adjusting cavity, the liquid outlet end of the output pipe is communicated with the impurity removal inlet end, the liquid inlet end of the output pipe is communicated with the bottom of the adjusting cavity, and the pump body is arranged at the output pipe.
2. The pretreatment device according to claim 1, wherein the sand discharge unit further comprises an output valve which is arranged at the output pipe and is positioned at one side of the pump body away from the adjusting cavity; The stirring structure comprises a circulating pipe, the circulating pipe is communicated with the output pipe, a communication part between the circulating pipe and the output pipe is positioned between the pump body and the output valve, and an internal channel of the circulating pipe is also communicated with the bottom of the adjusting cavity.
3. The pretreatment device according to claim 2, wherein the stirring structure further comprises a plurality of stirring pipes, the circulating pipes are respectively communicated with the plurality of stirring pipes and communicated with the bottom of the regulating cavity via the plurality of stirring pipes, and the communicating ports of the plurality of stirring pipes and the inner wall of the regulating cavity are arranged at intervals along the circumferential direction of the regulating cavity.
4. A pretreatment device according to claim 3, wherein the regulating chamber is cylindrical, and a tangent line at the connection of the inner wall of the regulating chamber and each stirring tube is an indication tangent line; the stirring pipe is provided with stirring sections extending into the adjusting cavity, each stirring section and the adjacent indication tangent line are arranged at an included angle, and a plurality of stirring sections are sequentially distributed along the circumference of the adjusting cavity.
5. The pretreatment device as recited in claim 2, wherein the stirring structure further comprises a circulation valve provided to the circulation pipe.
6. The pretreatment device according to any one of claims 1 to 5, further comprising an oil drain pipe and an oil drain valve, wherein an internal passage of the oil drain pipe communicates the impurity removal inlet port with an upper portion of the adjustment chamber, and the oil drain valve is provided to the oil drain pipe.
7. The pretreatment device as recited in claim 6, wherein an oil drain port for communicating with the oil drain pipe is provided at an upper portion of an inner wall of the regulating chamber, a skimming groove is provided at an inner wall of the regulating chamber in an inclined manner, and a lower end of the skimming groove is communicated with the oil drain port.
8. The pretreatment device according to claim 1, wherein a bottom wall of the regulating chamber is provided obliquely downward from a periphery to a middle; the internal channel of the output pipe is communicated with the adjusting cavity and is positioned in the middle of the bottom of the adjusting cavity.
9. The pretreatment device of claim 8, wherein the output tube has a sand discharge section extending into the conditioning chamber, the sand discharge section extending from a side wall of the conditioning chamber to the middle and being spaced from a bottom wall of the conditioning chamber.
10. A kitchen waste treatment system comprising a pretreatment apparatus according to any one of claims 1 to 9.

Description

Pretreatment device and kitchen waste treatment system Technical Field The utility model relates to the technical field of kitchen waste treatment, in particular to a pretreatment device and a kitchen waste treatment system. Background At present, most kitchen waste is pretreated firstly, materials subjected to pretreatment, sorting, impurity removal, heating, oil removal and sand removal are sent to an adjusting tank, water quality and water quantity are balanced through the adjusting tank, and then the materials are sent to an anaerobic fermentation device, and biogas is produced through fermentation of the anaerobic fermentation device. Publication No. CN220351938U discloses an anaerobic treatment device for kitchen waste, which is characterized in that a three-phase separator, an adjusting tank, an anaerobic digestion reactor and a biogas slurry storage tank are sequentially connected, kitchen waste is firstly conveyed to the three-phase separator, solid phases such as sand setting and grease in the kitchen waste are removed through the three-phase separator, separated slurry is sequentially conveyed to the adjusting tank and the anaerobic digestion reactor, and the slurry is decomposed in the anaerobic digestion reactor to generate biogas and is stored in the biogas slurry storage tank. However, when the regulating tank works for a long time, the materials accumulated and stored by the fine sand still exist at the bottom of the regulating tank, and the scale at the bottom of the regulating tank is easy to cause, so that the volume of the regulating tank is gradually reduced, and even an output pipeline is blocked. At present, the regulating tank is stopped regularly, an external water source is introduced to flush and clean the settled sand at the bottom of the regulating tank and accumulated materials, and the cleaned materials are conveyed to a three-phase separator for recycling, so that the treatment efficiency of kitchen wastes is reduced. Disclosure of utility model The utility model aims to overcome the technical defects, and provides a pretreatment device which solves the technical problems that in the prior art, through periodically stopping a regulating tank, introducing an external water source to wash and clean settled sand and accumulated materials at the bottom of the regulating tank, conveying the cleaned materials to a three-phase separator for recycling, and reducing the treatment efficiency of kitchen wastes. In order to achieve the technical purpose, the utility model adopts the following technical scheme: In a first aspect, the present utility model provides a pretreatment device comprising: The impurity removing unit is provided with an impurity removing inlet end and an impurity removing outlet end and is used for removing settled sand; The adjusting unit is provided with an adjusting cavity which is communicated with the impurity removing outlet end and is provided with a discharge hole communicated with the anaerobic device, and The sand discharge unit comprises a stirring structure, an output pipe and a pump body, wherein the stirring structure is arranged at the bottom of the adjusting unit and positioned at the bottom of the adjusting cavity, the liquid outlet end of the output pipe is communicated with the impurity removal inlet end, the liquid inlet end of the output pipe is communicated with the bottom of the adjusting cavity, and the pump body is arranged at the output pipe. In some embodiments, the sand discharge unit further comprises an output valve, wherein the output valve is arranged on the output pipe and is positioned on one side of the pump body away from the adjusting cavity; The stirring structure comprises a circulating pipe, the circulating pipe is communicated with the output pipe, a communication part between the circulating pipe and the output pipe is positioned between the pump body and the output valve, and an internal channel of the circulating pipe is also communicated with the bottom of the adjusting cavity. In some embodiments, the stirring structure further comprises a plurality of stirring pipes, the circulating pipes are respectively communicated with the plurality of stirring pipes and are communicated with the bottom of the adjusting cavity through the plurality of stirring pipes, and the plurality of stirring pipes and the communication ports of the inner wall of the adjusting cavity are arranged at intervals along the circumferential direction of the adjusting cavity. In some embodiments, the adjusting cavity is in a cylindrical shape, and a tangent line at the connection part of the inner wall of the adjusting cavity and each stirring pipe is an indication tangent line; the stirring pipe is provided with stirring sections extending into the adjusting cavity, each stirring section and the adjacent indication tangent line are arranged at an included angle, and a plurality of stirring sections are sequentially distributed along the circumference