CN205856282U - A kind of feces disposal equipment - Google Patents

Abstract

This utility model relates to technical field of waste treatment, it is provided that feces disposal equipment first broken feces in broken pond, in inputting grid sewage-removing machine after feces is broken, grid sorting produces feces major ingredient；After feces major ingredient entrance hydrolysis acidification pool hydrolysis acidification becomes solable matter, enter anaerobic reaction-pot and carry out anaerobic reaction generation biogas and biogas slurry, after biogas slurry entrance flocculation tank is mixed into mixed material with flocculant, carry out thickener dehydration and obtain dry material and waste water, dry material enters aerobic reaction tank and carries out aerobic reaction generation fertilizer, and waste water wastewater treatment equipment processes.This equipment volume is less, greatly reduce than the floor space of the anaerobic tank of centralization process feces, it is shorter that this equipment processes feces speed, time, only needs several days time just can be processed to, contrast the 3 of the process of traditional manure pit～its treatment effeciency of process time of 4 months be greatly improved；Organic substance in feces is changed into biogas and fertilizer by this equipment, makes dung recovery utilization rate improve.

Description

A kind of excrement treatment equipment

【Technical field】

The utility model relates to the technical field of garbage treatment, in particular to a kind of excrement treatment equipment.

【Background technique】

The feces of building residents are generally collected in septic tanks for centralized treatment. The septic tank covers a large area, and the septic tank generally takes 3 to 4 months to process. The feces processing time is long and the processing efficiency is low.

【Content of utility model】

The utility model aims at the technical problems that feces in the prior art are generally collected in septic tanks for treatment, which occupies a large area, and the septic tank takes a long time to process feces and has low processing efficiency. It provides a kind of feces treatment equipment. The technical scheme is as follows :

The utility model provides a feces processing equipment, which comprises:

Breaking tanks for breaking up manure;

The grid decontamination machine connected to the discharge end of the crushing tank, the grid decontamination machine is used for the impurities and main materials of the feces produced by the grid sorting and crushing;

A hydrolytic acidification tank connected to the discharge end of the grid decontamination machine, the hydrolytic acidification tank is used to hydrolyze and acidify the main material of feces into soluble substances;

An anaerobic reaction tank connected to the discharge end of the hydrolytic acidification tank, the anaerobic reaction tank is used to allow soluble substances to undergo anaerobic reaction in it to generate biogas and biogas slurry;

A flocculation tank connected to the discharge end of the anaerobic reaction tank, the flocculation tank is used to mix biogas slurry and flocculant into a mixed material;

A concentrator connected to the flocculation tank, which is used to dehydrate the mixed material to obtain dry material and waste water;

An aerobic reaction tank connected to the concentrator, which is used to allow dry materials to undergo aerobic reactions in it to produce organic fertilizers;

A waste water treatment unit connected to a thickener for treating waste water.

Optionally, the equipment also includes a biogas purification device connected to the anaerobic fermentation tank for purifying biogas.

Optionally, the equipment also includes a biogas generator connected to the biogas purification device.

Optionally, the distance between the grid bars of the grid decontamination machine is 10-50mm.

Optionally, the reaction temperature of the anaerobic reaction tank includes a medium-temperature reaction temperature and a high-temperature reaction temperature. The optimum anaerobic reaction temperature of the medium-temperature reaction temperature is 30-38°C, and the optimum anaerobic reaction temperature of the high-temperature reaction temperature is 50-55°C. ℃.

Optionally, a mixer is installed in the crushing tank.

Optionally, the anaerobic reaction tank is an upflow anaerobic sludge bed reactor.

Optionally, the equipment further includes a spiral mixer, the feed end of the spiral stirrer is connected with the flocculation tank, and the discharge end of the spiral stirrer is connected with the concentrator.

Optionally, the flocculant is polyacrylamide.

Optionally, the equipment also includes a deodorizing device connected to the crushing pool.

The feces treatment equipment provided by the embodiment of the utility model first crushes the feces in the crushing tank, and after the feces are broken, they are input into the grid sorting in the grid decontamination machine to produce the main material of the feces; , enter the anaerobic reaction tank for anaerobic reaction to produce biogas and biogas slurry, the biogas slurry enters the flocculation tank and is mixed with a flocculant to form a mixed material, then dehydrates in a concentrator to obtain dry material and waste water, and the dry material enters an aerobic reaction tank for aerobic The reaction produces organic fertilizer, and the waste water is treated with a waste water treatment device. The excrement treatment equipment provided by the embodiment of the utility model is smaller in volume, and the occupied area of the septic tank is greatly reduced than that of the septic tank for centralized treatment of excrement. Compared with the treatment time of 3 to 4 months in the traditional septic tank, the treatment efficiency is greatly improved; this equipment converts the organic matter in the feces into biogas and organic fertilizer, which improves the utilization rate of feces as a resource.

【Description of drawings】

Fig. 1 is a flow chart of the feces treatment method provided by the embodiment of the present invention.

Fig. 2 is a flow chart of a feces treatment method provided by another embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the feces treatment equipment provided by the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a feces treatment device provided by another embodiment of the present invention.

【detailed description】

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

As shown in Figure 1, the feces treatment method that the utility model embodiment provides comprises:

Step 101: breaking up the feces. The excrement (including feces) produced by the residents in the building is collected to the treatment facilities in the basement for centralized treatment. The feces pass from the flush toilet into the crushing tank, and the feces can be roughly crushed by means of a blade mixer, or generally crushed.

Step 102: Grille sorting and crushing excrement produces impurities and main feces. The grid sorting can use the grid decontamination machine, the distance between the grid bars of the grid decontamination machine can be set to 10-50mm, and the impurities in the feces are sorted out, and packed and sent to the processing center for processing. Further, the noise during the crushing process can be controlled to reduce the noise, and the odor during the crushing process can also be controlled to increase the deodorization process. Since the feces have an odor, it is necessary to increase the deodorization step.

Step 103: hydrolyzing and acidifying the main feces material into soluble substances. The hydrolysis and acidification time of the main feces can be set to 1 to 2 days, during which the insoluble organic matter in the feces can be decomposed into soluble substances.

Step 104: Anaerobic reaction of soluble substances to generate biogas and biogas slurry. The hydrolyzed soluble substances are anaerobically produced biogas, and the reaction tank adopts an upflow anaerobic sludge bed reactor (Up-flow Anaerobic Sludge Bed/Blanket, UASB), and the organic matter is rapidly fermented and decomposed in an anaerobic environment to produce biogas, that is, methane . Anaerobic reactions are divided into mesophilic anaerobic reactions and high-temperature anaerobic reactions. The best reaction temperature for mesophilic anaerobic reactions is 35°C, the best reaction temperature for high-temperature anaerobic reactions is 50-55°C, and the best anaerobic reaction temperature for mesophilic anaerobic reactions. The entire anaerobic reaction process can be completed in only 1 to 2 days at the reaction temperature. The reaction process of mesophilic anaerobic reaction is easier to control and consumes less energy.

Step 105: Biogas slurry and flocculant are mixed to form a mixed material. Anaerobic reaction produces biogas slurry mixed with flocculant to form a mixed material. The flocculant is polyacrylamide (Polyacrylamide, PAM). The flocs thus generate a huge surface adsorption.

Step 106: dehydrating the mixed material to obtain dry material and waste water. The mixed material can be dehydrated by a concentrator. The concentrator is specifically a screw pressure concentration tank, and the screw pressure concentration tank is a variable-diameter variable-pitch extrusion concentrator. Variable pitch means that the distance between the helical blades of the screw is gradually reduced, causing the volume of the mixed material to be continuously squeezed in the process of advancing, and then the mixed material is dehydrated. Spiral diameter reduction means that the diameter of the screw shell gradually decreases in the direction of decreasing distance between the spiral sheets. The function of the spiral diameter reduction is to form a gradually shrinking space together with the distance-reducing spiral sheets, and the space for the mixture to advance The smaller it is, so the dry material is obtained by continuous dehydration, that is, the dry material, and the released water is waste water.

Step 107: Dry materials undergo aerobic reaction to produce organic fertilizer. The aerobic reaction of dry materials can be carried out in the aerobic reaction tank. The optimum reaction temperature for the aerobic reaction is 50-55°C. It only takes 2 to 3 days to complete, and the product of aerobic reaction is organic fertilizer.

Step 108: Treat the waste water and discharge it up to the standard. The waste water treatment may use a reverse osmosis film (reverse osmosis film, RO), specifically a disc tube reverse osmosis film (DTRO film).

The beneficial effect of the embodiment of the utility model is that the feces treatment method provided by the embodiment of the utility model firstly crushes the feces and then sorts out the main material of the feces with a grid, and hydrolyzes and acidifies the main material of the feces into soluble substances, and the soluble substances are anaerobically processed. The reaction produces biogas and biogas slurry, adding flocculant to the biogas slurry to form a mixed material, and then dehydrating to obtain dry material and wastewater. The dry material can undergo aerobic reaction to produce organic fertilizer; the wastewater is treated and discharged up to the standard, so that the excrement does not come out The building is directly disposed of, replacing the centralized treatment method of the septic tank. The feces treatment method provided by the embodiment of the utility model has a faster speed and a shorter time for treating the feces, and it only takes a few days to dispose of it. Compared with the treatment time of 3 to 4 months in the traditional septic tank, the treatment efficiency is greatly improved; the method converts the organic matter in the manure into biogas and organic fertilizer, and improves the resource utilization rate of manure.

As shown in Figure 2, in another embodiment, after the step of fermenting waste water to generate biogas, the method also includes:

Step 109: Purify the biogas. The main impurities in the biogas are hydrogen sulfide (H ₂ S) and carbon dioxide (CO ₂ ). The activated carbon adsorption method is used to remove hydrogen sulfide. Activated carbon has a lot of pores and has a strong adsorption capacity. Carbon dioxide is absorbed by lime water (calcium hydroxide), so that calcium hydroxide and carbon dioxide react to form calcium carbonate and then precipitate, so as to achieve the purpose of removing carbon dioxide. It should be noted that since part of the water vapor contained in the biogas is liquefied into water during the gas transportation and purification process, no special steps are required to remove the water vapor, and the purpose of purifying the biogas can be achieved by removing H ₂ S and CO ₂ .

As shown in Figure 2, in yet another embodiment, the method also includes:

Step 110: Generating power from the purified biogas to generate electricity, and generating high-temperature flue gas during the power generation process. Furthermore, the electric energy generated by biogas power generation can be used in the step of crushing feces, and the electric energy generated by biogas power generation can be supplied to users for the process of crushing feces without occupying external energy. Enthusiasm is conducive to the popularization of the excrement treatment method that the utility model embodiment provides. Furthermore, the high-temperature flue gas can also be used to raise the temperature and heat preservation of the process of anaerobic reaction of soluble substances to produce biogas and biogas slurry, and heat and heat preservation of the process of aerobic reaction of dry materials to produce organic fertilizer, so that the anaerobic reaction Both the aerobic reaction and the aerobic reaction are kept within the required reaction temperature to improve the reaction efficiency.

As shown in Figure 2, in yet another embodiment, the step of mixing biogas slurry and flocculant to form a mixed material includes:

Step 111: Stir the mixed material. A spiral mixer can be used for stirring to fully mix the mixed material of biogas slurry and flocculant. After the evenly stirred mixed material is dehydrated to obtain dry material and waste water, the dry material is subjected to aerobic reaction to produce organic fertilizer. , the well-stirred mixed material can better carry out the aerobic reaction, and it is easier to reach the aerobic reaction conditions.

In one embodiment, after the step of grid sorting and crushing feces to produce impurities and feces main ingredients, it also includes:

Step 112: Pack the impurities and send them to the processing center for processing. The processing center is generally set up independently outside the building.

Example 2

Correspondingly, the embodiment of the present utility model also provides feces treatment equipment, as shown in Figure 3, the equipment includes a crushing tank 1, a grid decontamination machine 2, a hydrolytic acidification tank 3, anaerobic reaction tank 4, a flocculation tank 5, Concentrator 6, aerobic reaction tank 7 and waste water treatment device 8. It specifically includes: a crushing tank 1 for crushing feces; a grid decontamination machine 2 connected to the discharge end of the crushing tank, and the grid decontamination machine 2 is used for sorting and crushing the feces to produce impurities and feces main materials; The hydrolytic acidification tank 3 connected to the discharge end of the grid decontamination machine 2, the hydrolysis acidification tank 3 is used to hydrolyze and acidify the main material of feces into soluble substances; the anaerobic reaction tank 4 connected to the discharge end of the hydrolysis acidification tank 3 , the anaerobic reaction tank 4 is used to allow soluble substances to undergo anaerobic reaction in it to generate biogas and biogas slurry; the flocculation tank 5 connected to the discharge end of the anaerobic reaction tank 4, the flocculation tank 5 is used to combine the biogas slurry with flocculation The concentrator 6 connected with the flocculation tank 5, the concentrator 6 is used to dehydrate the mixed material to obtain dry material and waste water; the aerobic reaction tank 7 connected with the concentrator 6, the aerobic reaction tank 7 is used for Let the dry material carry out aerobic reaction in it to produce organic fertilizer; the waste water treatment device 8 connected with the concentrator 6 for treating waste water. The excrement treatment equipment provided by the embodiment of the utility model uses the above-mentioned excrement treatment method, first crushes the excrement in the crushing tank 1, and after the excrement is broken, enters the grid sorting in the grid decontamination machine 2 to produce the main material of the feces; the main material of the feces enters the hydrolysis After the acidification tank 3 is hydrolyzed and acidified into soluble substances, it enters the anaerobic reaction tank 4 for anaerobic reaction to generate biogas and biogas slurry. After the biogas slurry enters the flocculation tank 5 and is mixed with a flocculant to form a mixed material, it is dehydrated by the concentrator 6 to obtain dry material and Wastewater and dry materials enter the aerobic reaction tank 7 for aerobic reaction to produce organic fertilizer, and the waste water is treated by the waste water treatment device 8 and then discharged up to standard. The excrement treatment equipment provided by the embodiment of the utility model is small in size, and the occupied area is greatly reduced compared with the septic tank for centralized treatment of excrement. Compared with the treatment time of 3 to 4 months in the traditional septic tank, the treatment efficiency is greatly improved; this equipment converts the organic matter in the feces into biogas and organic fertilizer, which improves the utilization rate of feces as a resource.

Further, a mixer (not shown) is installed at the entrance of the crushing tank 1 to coarsely crush the feces feed. The mixer is specifically a blade mixer. It flows through the back end of the crushing tank 1, and the back end of the crushing tank 1 is connected to the grid decontamination machine 2, and the feces enter the grid decontamination machine 2, and the impurities and feces main materials are produced by grid sorting. Furthermore, the grid bar spacing of the grid decontamination machine 2 is 10-50 mm, and the impurities separated by the grid are packaged and sent to the processing center 11 for processing. The processing center 11 is generally set independently outside the building. Furthermore, a noise reduction device (not shown) can be added to control the noise in the crushing process, so that the noise can be reduced. Because the feces have a smell, a deodorizing device (not shown) can also be added to control the noise in the crushing process. Odor, the deodorization device can be installed in the crushing pool 1, or connected with the crushing pool 1.

The hydrolytic acidification tank 3 hydrolyzes and acidifies the main material of the feces into soluble substances. Further, the hydrolysis and acidification time of the main material of the feces in the hydrolytic acidification tank 3 can be set to 1 to 2 days, during which the insoluble organic matter in the feces is decomposed into soluble substances. Soluble substances are conducive to anaerobic reactions.

Further, the anaerobic reaction tank 4 adopts an upflow anaerobic sludge bed reactor (Up-flow Anaerobic Sludge Bed/Blanket, UASB), and organic matter is rapidly fermented and decomposed in an anaerobic environment to generate biogas, namely methane. The anaerobic reaction in the anaerobic reaction tank 4 is divided into medium-temperature anaerobic reaction and high-temperature anaerobic reaction. The optimum reaction temperature of medium-temperature anaerobic reaction is 30-38°C, specifically 35°C can be selected, and the optimum reaction temperature of high-temperature anaerobic reaction is The temperature is 50-55°C, and the entire anaerobic reaction process can be completed in only 1-2 days at the optimum anaerobic reaction temperature for mesophilic anaerobic reaction. The reaction process of mesophilic anaerobic reaction is easier to control and consumes less energy.

As shown in FIG. 4 , in another embodiment, the equipment further includes a biogas purification device 9 connected to the anaerobic fermentation tank 4 for purifying biogas. The main impurities in the biogas produced by the anaerobic reaction in the anaerobic reaction tank 4 are hydrogen sulfide (H ₂ S) and carbon dioxide (CO ₂ ), and the biogas purification device 9 uses activated carbon adsorption to remove hydrogen sulfide. Has a strong adsorption capacity. Biogas purification device 9 removes carbon dioxide and adopts lime water (calcium hydroxide) absorption device to make calcium hydroxide react with carbon dioxide to become calcium carbonate and then precipitate. It should be noted that since part of the water vapor contained in the biogas is liquefied into water during the gas transportation and purification process, no special equipment is needed to remove the water vapor, and the purpose of purifying the biogas can be achieved by removing H ₂ S and CO ₂ .

As shown in FIG. 4 , in yet another embodiment, the equipment further includes a biogas generator 10 connected to a biogas purification device 9 . The electric energy generated by the biogas generator 10 is used by the crushing pool 1 without occupying external energy sources. If no additional consumption of residents' electricity bills is required, the enthusiasm of the residents for crushing feces is improved, which is conducive to the promotion of the feces treatment equipment provided by the embodiment of the present invention. Furthermore, the high-temperature flue gas generated by the biogas generator 10 can also be used to heat the anaerobic fermentation tank 4 and the aerobic reaction tank 7 to keep the anaerobic reaction and the aerobic reaction at the required reaction temperature respectively. to increase the reaction efficiency.

The biogas slurry output from the anaerobic reaction tank 4 is mixed with the flocculant to form a mixed material. Further, the flocculant can be polyacrylamide (PAM). Polyacrylamide is a non-ionic polymer flocculant, which has Larger flocs are formed between the particles of feces and thus produce a huge surface adsorption.

In one embodiment, the mixed material enters the dehydration tank, which includes a flocculation tank 5 at the front end and a thickener 6 at the rear end, and the flocculation tank 5 is provided with a dosing port to add flocculant. Further, a spiral mixer (not shown in the figure) is also provided in the dehydration tank, and the biogas slurry is fully stirred and mixed with the flocculant in the flocculation tank 5, and the evenly stirred mixture is dehydrated by the concentrator 6 to obtain dry materials, and the dry materials enter the well The oxygen reaction tank 7 performs aerobic reaction to produce organic fertilizer, and the uniformly stirred mixed material can better perform aerobic reaction, and it is easier to reach the aerobic reaction condition. The concentrator 6 is specifically a screw-press concentrator, and the screw-press concentrator is an extruding concentrator with variable diameter and variable pitch. Variable pitch means that the distance between the helical blades of the screw is gradually reduced, causing the volume of the mixed material to be continuously squeezed in the process of advancing, and then the mixed material is dehydrated. Spiral diameter reduction means that the diameter of the screw shell gradually decreases in the direction of decreasing distance between the spiral sheets. The function of the spiral diameter reduction is to form a gradually shrinking space together with the distance-reducing spiral sheets, and the space for the mixture to advance The smaller it is, so the dry material is obtained by continuous dehydration, that is, the dry material, and the released water is waste water.

In another embodiment, the dry material output by the concentrator 6 enters the aerobic reaction tank 7, and the dry material undergoes an aerobic reaction in the aerobic reaction tank 7. The optimum reaction temperature for the aerobic reaction is 50-55°C. Under the optimal reaction temperature, the aerobic reaction process can be completed in only 2 to 3 days after continuous stirring to maintain good contact with the air, and the product of the aerobic reaction is organic fertilizer.

As shown in Figure 4, in yet another embodiment, the waste water is discharged up to standard after being treated in the waste water treatment device 8, and the waste water treatment can use a reverse osmosis film (reverse osmosis film, RO), specifically, a disc tube type reverse osmosis can be used Membrane (DTRO membrane), using two-stage reverse osmosis filtration.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A kind of excrement processing equipment, is characterized in that, described equipment comprises: Breaking tanks for breaking up manure; A grid decontamination machine connected to the discharge end of the crushing tank, and the grid decontamination machine is used for separating impurities and main materials of feces produced by grid sorting and crushing; A hydrolytic acidification tank connected to the discharge end of the grid decontamination machine, the hydrolytic acidification tank is used to hydrolyze and acidify the main material of feces into soluble substances; An anaerobic reaction tank connected to the discharge end of the hydrolytic acidification tank, the anaerobic reaction tank is used to allow the soluble substances to undergo anaerobic reaction therein to generate biogas and biogas slurry; A flocculation tank connected to the discharge end of the anaerobic reaction tank, the flocculation tank is used to mix biogas slurry and flocculant into a mixed material; A concentrator connected to the flocculation tank, the concentrator is used to dehydrate the mixed material to obtain dry material and waste water; An aerobic reaction tank connected to the concentrator, which is used to allow the dry material to undergo an aerobic reaction to produce organic fertilizer; A waste water treatment unit connected to a thickener for treating waste water. 2. The excrement treatment equipment according to claim 1, characterized in that, the equipment further comprises a biogas purification device connected to the anaerobic fermentation tank for purifying biogas. 3. The excrement treatment equipment according to claim 2, characterized in that, the equipment further comprises a biogas generator connected with the biogas purification device. 4. The excrement treatment equipment according to claim 1, characterized in that, the distance between the grid bars of the grid decontamination machine is 10-50mm. 5. The excrement processing equipment as claimed in claim 1, wherein the reaction temperature of the anaerobic reaction tank comprises a medium temperature reaction temperature and a high temperature reaction temperature, and the optimum anaerobic reaction temperature of the medium temperature reaction temperature is 30-30°C. 38°C, the optimum anaerobic reaction temperature of the high temperature reaction temperature is 50-55°C. 6. The excrement processing equipment according to claim 1, characterized in that, a mixer is installed in the crushing tank. 7. The excrement treatment equipment as claimed in claim 1, characterized in that, the anaerobic reaction tank is an upflow anaerobic sludge bed reactor. 8. The excrement processing equipment as claimed in claim 1, characterized in that, the equipment also comprises a screw mixer, the feed end of the screw mixer is connected with the flocculation tank, and the discharge end of the screw mixer is connected with the concentrator . 9. The feces treatment equipment according to claim 1, wherein the flocculant is polyacrylamide. 10. The excrement treatment equipment according to claim 1, characterized in that, the equipment further comprises a deodorizing device, and the deodorizing device is connected with the crushing tank.