CN213506255U - Multistage filtering device for anaerobic biogas slurry of kitchen and kitchen waste - Google Patents

Abstract

The application discloses a multistage filtering device for anaerobic biogas slurry of kitchen and kitchen waste, which comprises a deslagging box and a multistage filtering tank which are sequentially communicated; the slag removing box is internally provided with a rotary drum grating, the inside of the rotary drum grating is provided with a slag removing spiral extending upwards in an inclined mode, and a plurality of multistage filter screens are vertically arranged in the multistage filter tanks. This multistage filter equipment is through the slagging-off case and the multistage filter tank of establishing ties, and anaerobism natural pond liquid at first gets into the slagging-off case, filters through the rotary drum grid, is greater than the dregs of rotary drum grid gate gap in the anaerobism natural pond liquid and discharges through arranging the sediment spiral, and anaerobism natural pond liquid continues to flow to the multistage filter tank in, carries out reaction on next step after the filtration of multistage filter screen deposits.

Description

Multistage filtering device for anaerobic biogas slurry of kitchen and kitchen waste

Technical Field

The utility model relates to a refuse treatment technical field especially relates to a meal kitchen and kitchen multi-stage filtration device of anaerobism natural pond liquid of rubbish from cooking.

Background

Kitchen and kitchen garbage refers to garbage generated in activities such as daily life of residents, food processing, food service, unit catering and the like, and comprises abandoned vegetable leaves, leftovers, fruit peels, egg shells, tea residues, bones and the like, the main sources of the garbage are household kitchens, restaurants, dining halls, markets and other industries related to food processing, the kitchen and kitchen garbage contains extremely high water and organic matters, is easy to rot and generate stink, and can be converted into new resources through proper treatment and processing, the characteristic of high organic matter content enables the kitchen and kitchen garbage to be used as fertilizer and feed after strict treatment, and can also be used for generating methane or biofuel, and the grease part can be used for preparing biofuel.

The kitchen and kitchen garbage is mostly treated by adopting an anaerobic digestion technology, but the concentration of pollutants in organic slurry generated after anaerobic digestion is still very high, and the effluent suspended matters are more, and due to the particularity of the kitchen and kitchen garbage, animal and vegetable oil mixtures can be doped in the organic slurry, so that the kitchen and kitchen garbage contains a large amount of fatty glyceride, the solidifying point of the kitchen and kitchen garbage is higher than that of common soybean oil or other edible vegetable oil, the kitchen and kitchen garbage can be solidified at normal temperature, and the filtering structure is easily blocked.

Meanwhile, the suspended matters of the biogas slurry after anaerobic digestion are high, and the biogas slurry is required to be pretreated before being used as biogas fertilizer or being treated by a rear-end sewage treatment facility.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a meal kitchen and kitchen are multistage filter equipment of the anaerobism natural pond liquid of rubbish from cooking, this multistage filter equipment is through the slagging-off case and the multistage filter tank of establishing ties, and anaerobism natural pond liquid at first gets into the slagging-off case, filters through the rotary drum grid, is greater than the dregs through arranging sediment spiral discharge in the anaerobism natural pond liquid in the rotary drum grid gate gap, and anaerobism natural pond liquid continues to flow to the multistage filter tank in, carries out reaction on next step after the filtration of multistage filter screen deposits.

In order to realize the aim, the utility model provides a multistage filtering device for anaerobic biogas slurry of kitchen and kitchen garbage, which comprises a deslagging box and a multistage filtering tank which are sequentially communicated; the slag removing box is internally provided with a rotary drum grating, the inside of the rotary drum grating is provided with a slag removing spiral extending upwards in an inclined mode, and a plurality of multistage filter screens are vertically arranged in the multistage filter tanks. This multistage filter equipment is through the slagging-off case and the multistage filter tank of establishing ties, and anaerobism natural pond liquid at first gets into the slagging-off case, filters through the rotary drum grid, is greater than the dregs of rotary drum grid gate gap in the anaerobism natural pond liquid and discharges through arranging the sediment spiral, and anaerobism natural pond liquid continues to flow to the multistage filter tank in, carries out reaction on next step after the filtration of multistage filter screen deposits.

In one example, the drum grid comprises an annular drum grid; the drum grating further comprises a brushing mechanism, the brushing mechanism comprises a pipe fitting arranged along the axial direction of the drum grating, the pipe fitting is arranged on the outer side of the drum grating, and auxiliary bristles are arranged on one side, facing the drum grating, of the pipe fitting. After the brush is used for a period of time, solid residues are easy to remain on the grid mesh of the drum barrel of the drum grid, the grid gaps are easy to block, the cleaning is very troublesome, and the auxiliary brush hairs can brush the solid residues.

In one example, the multi-stage filter screen comprises a first-stage filter screen, a second-stage filter screen and a third-stage filter screen, wherein the inner diameters of the first-stage filter screen, the second-stage filter screen and the third-stage filter screen are sequentially reduced. After the anaerobic biogas slurry enters the multistage filter tank, the anaerobic biogas slurry is sequentially filtered by the first-level filter screen, the second-level filter screen and the third-level filter screen, the anaerobic biogas slurry is filtered step by the three-level filter screens, the filter effect is better, and the filter screens are not easy to block.

In one example, a cleaning rod is further arranged in the multistage filter tank, cleaning bristles are arranged on the cleaning rod and are in contact with the multistage filter screens, and the cleaning rod can move parallel to the multistage filter screens to clean the multistage filter screens. When the multi-stage filter screen needs to be cleaned in the using process, the multi-stage filter screen can be cleaned by the cleaning bristles of the cleaning rod, so that the cost of manual cleaning is saved, and the production of enterprises is facilitated.

In one example, the cleaning rod is fixedly arranged on the inner wall of the multistage filter tank through a telescopic power device, a guide rail is arranged on the inner wall of the multistage filter tank, two ends of the cleaning rod are connected with the guide rail in a sliding mode, and the telescopic power device can drive the cleaning rod to move along the guide rail, wherein the movement is parallel to the multistage filter screen. The telescopic power device provides power for the movement of the cleaning rod, and the guide rail can guide the movement of the cleaning rod, so that the movement of the cleaning rod is more stable.

In one example, the auxiliary bristles are made of a nylon material. The auxiliary brush hair of the nylon material is wear-resistant, the cleaning effect is good, and the abrasion caused by the drum barrel grid mesh can be avoided.

In one example, the reject screw is provided as a variable pitch screw. When dregs removed the cinder box through arranging sediment spiral discharge, the pitch of becoming the pitch spiral was diminished by big, and dregs gradually received helical blade's extrusion at the exhaust in-process to extrude the liquid in the dregs, dregs water content reduces, becomes more dry, is favorable to carrying out subsequent processing to dregs.

In one example, the deslagging box and/or the multistage filter tank are/is further provided with an air suction opening, and the air suction opening is communicated with a deodorization system through a fan. And the unpleasant gas emitted by the anaerobic biogas slurry can be extracted through the air suction opening and then deodorized, so that the working environment of workers is protected.

Drawings

The drawings described herein are intended only to assist those skilled in the art in understanding the technical solutions of the present invention, and the exemplary embodiments of the present invention described in conjunction with the drawings are intended only to explain the technical solutions of the present invention and do not constitute an undue limitation on the present invention. In the drawings:

fig. 1 is a front view of the multistage filtering device for anaerobic biogas slurry of kitchen and kitchen garbage provided by the embodiment of the utility model.

List of reference numerals:

the device comprises a multistage filtering device 1, a deslagging box 2, a multistage filtering tank 3, a rotary drum grid 4, a deslagging spiral 5, a multistage filtering net 6, a rotary drum grid 7, a pipe fitting 8, auxiliary bristles 10, a first-stage filtering net 11, a second-stage filtering net 12, a third-stage filtering net 13, a cleaning rod 14, cleaning bristles 15, a guide rail 16, an air suction opening 17 and a fan 18.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

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 invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1, the utility model provides a multistage filtering device 1 for anaerobic biogas slurry of kitchen and kitchen waste, which comprises a deslagging box 2 and a multistage filtering tank 3 which are sequentially communicated; a rotary drum grating 4 is arranged in the deslagging box 2, a deslagging spiral 5 which extends upwards in an inclined mode is arranged in the rotary drum grating 4, and a plurality of multistage filter screens 6 are vertically arranged in the multistage filter tank 3. This multistage filter equipment 1 is through the slagging-off case 2 and the multistage filter tank 3 of establishing ties, and anaerobism natural pond liquid at first gets into slagging-off case 2, filters through rotary drum grid 4, and the dregs that is greater than rotary drum grid 4 gate gaps in the anaerobism natural pond liquid is discharged through row sediment spiral 5, and anaerobism natural pond liquid continues to flow to multistage filter tank 3 in, carries out reaction on next step after multistage filter screen 6's filtration sediment.

In one particular embodiment, as shown in FIG. 1, the drum grid 4 comprises an annular drum grid 7; the drum grille 4 further comprises a scrubbing mechanism, the scrubbing mechanism comprises a pipe fitting 8 arranged along the axial direction of the drum grille 7, the pipe fitting 8 is arranged on the outer side of the drum grille 7, and auxiliary brush bristles 10 are arranged on one side, facing the drum grille 7, of the pipe fitting 8. After the rotary drum grating 4 is used for a period of time, solid residues are easy to remain on the rotary drum grating 7 of the rotary drum grating 4, grating gaps are easy to block, the cleaning is very troublesome, and the auxiliary bristles 10 can brush the solid residues.

In a specific embodiment, as shown in fig. 1, the multi-stage filtering net 6 includes a first-stage filtering net 11, a second-stage filtering net 12 and a third-stage filtering net 13, and the inner diameters of the meshes of the first-stage filtering net 11, the second-stage filtering net 12 and the third-stage filtering net 13 are sequentially reduced. After the anaerobic biogas slurry enters the multistage filter tank 3, the anaerobic biogas slurry is sequentially filtered through the first-stage filter screen 11, the second-stage filter screen 12 and the third-stage filter screen 13, the anaerobic biogas slurry is filtered step by step through the three-stage filter screens, the filter effect is better, and the filter screens are not easy to block.

In one embodiment, as shown in fig. 1, a cleaning rod 14 is further disposed in the multistage filter tank 3, cleaning bristles 15 are disposed on the cleaning rod 14, the cleaning bristles 15 are in contact with the multistage filter screens 6, and the cleaning rod 14 can move parallel to the multistage filter screens 6 to clean the multistage filter screens 6. When the multi-stage filter screen 6 needs to be cleaned in the using process, the multi-stage filter screen 6 can be cleaned through the cleaning bristles 15 of the cleaning rod 14, so that the manual cleaning cost is saved, and the production of enterprises is facilitated.

In one embodiment, as shown in fig. 1, the cleaning rod 14 is fixedly disposed on the inner wall of the multistage filtering tank 3 through a telescopic power device (not shown), the inner wall of the multistage filtering tank 3 is provided with a guide rail 16, two ends of the cleaning rod 14 are slidably connected with the guide rail 16, and the telescopic power device can drive the cleaning rod 14 to move along the guide rail 16 in parallel to the multistage filtering net 6. The telescopic power device provides power for the movement of the cleaning rod 14, and the guide rail 16 can guide the movement of the cleaning rod 14, so that the movement of the cleaning rod 14 is more stable.

In one embodiment, as shown in fig. 1, the auxiliary bristles 10 are made of a nylon material. The auxiliary brush bristles 10 made of nylon materials are wear-resistant, have good cleaning effect and cannot be worn by the drum cylinder grid 7.

In a particular embodiment, the reject screw 5 is provided as a variable pitch screw. When dregs remove the cinder box through 5 discharges of sediment spirals, become the pitch of pitch spiral by diminishing greatly, dregs gradually receive helical blade's extrusion at the exhaust in-process to extrude the liquid in the dregs, dregs water content reduces, becomes more dry, is favorable to carrying out subsequent processing to dregs.

In a specific embodiment, as shown in fig. 1, the deslagging box 2 and/or the multistage filtering tank 3 are/is further provided with an air suction opening 17, and the air suction opening 17 is communicated with a deodorization system through a fan 18. The unpleasant gas emitted by the anaerobic biogas slurry can be extracted through the air extraction opening 17 and then deodorized, so that the working environment of workers is protected.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. A multi-stage filtering device for anaerobic biogas slurry of kitchen and kitchen garbage is characterized by comprising a deslagging box and a multi-stage filtering tank which are sequentially communicated; the slag removing box is internally provided with a rotary drum grating, the inside of the rotary drum grating is provided with a slag removing spiral extending upwards in an inclined mode, and a plurality of multistage filter screens are vertically arranged in the multistage filter tanks.

2. The multi-stage filtration device of claim 1, wherein the drum grid comprises an annular drum grid;

the drum grating further comprises a brushing mechanism, the brushing mechanism comprises a pipe fitting arranged along the axial direction of the drum grating, the pipe fitting is arranged on the outer side of the drum grating, and auxiliary bristles are arranged on one side, facing the drum grating, of the pipe fitting.

3. The multistage filtering device according to claim 1, wherein the multistage filtering device comprises a first stage filtering screen, a second stage filtering screen and a third stage filtering screen, and the inner diameters of the meshes of the first stage filtering screen, the second stage filtering screen and the third stage filtering screen are sequentially reduced.

4. The multistage filtering device according to claim 1, wherein a cleaning rod is further disposed in the multistage filtering tank, cleaning bristles are disposed on the cleaning rod, the cleaning bristles are in contact with the multistage filtering screens, and the cleaning rod can move parallel to the multistage filtering screens to clean the multistage filtering screens.

5. The multistage filtering device according to claim 4, wherein the cleaning rod is fixedly arranged on the inner wall of the multistage filtering tank through a telescopic power device, a guide rail is arranged on the inner wall of the multistage filtering tank, two ends of the cleaning rod are slidably connected with the guide rail, and the telescopic power device can drive the cleaning rod to move along the guide rail in a manner of being parallel to the multistage filtering net.

6. The multiple stage filtration device of claim 2, wherein the auxiliary bristles are made of a nylon material.

7. The multi-stage filtration device of claim 1, wherein the reject screw is provided as a variable pitch screw.

8. The multistage filtering device according to any one of claims 1 to 7, wherein the deslagging box and/or the multistage filtering tank are/is further provided with an air suction opening, and the air suction opening is communicated with a deodorization system through a fan.

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