Integrated organic waste fermentation treatment device

Abstract

The utility model belongs to the technical field of microbial fermentation equipment, and particularly relates to an integrated organic waste fermentation treatment device, which is characterized in that the inner layer of the fermentation equipment is a material fermentation area, the outer layer is a heat preservation circulation area, a slurry injection port of the fermentation equipment is connected with slurry preparation equipment, and a slurry outlet is connected with bacterial liquid circulation equipment which is provided with a bacterial liquid outlet; the bacterial liquid outlet is connected with pulping equipment; a conical groove is formed in the bottom of the material fermentation area, and a residue discharging opening is formed in the side wall of the conical groove, is close to the bottom and is connected with mushroom residue circulating equipment through a residue discharging pump; heat-preservation circulating liquid is injected into the heat-preservation circulating area, a liquid inlet of the heat-preservation circulating area is connected with heat storage equipment through a circulating liquid pump, and a liquid outlet of the heat-preservation circulating area is connected with the heat storage equipment used for heating the circulating liquid. The material fermentation area is further provided with a PH sensor and a pressure sensor, the PH sensor and the pressure sensor are in communication connection with the control device, the exhaust port is connected with the gas storage cabinet, and the problems that in the prior art, organic waste treatment is low in production efficiency and high in cost are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of microbial fermentation equipment, and specifically relates to an integrated organic waste fermentation treatment device. Background Art

[0002] The existing technologies for treating organic waste mainly include anaerobic fermentation, aerobic aeration fermentation and aerobic composting fermentation.

[0003] Aerobic aeration fermentation requires oxygenation through aeration plates. Long-term use and equipment obsolescence will cause the air holes of the aeration plates to rupture, resulting in increased bubbles, uneven air outlet, and poor oxygenation effect. It will also cause material and sewage to flow back into the aeration pipe, causing equipment damage. In addition, high-speed mechanical stirring aeration is required for oxygenation. High-speed mechanical stirring aeration consumes a lot of energy and makes a lot of noise, which will further increase the processing cost. In addition, the aerobic fermentation reaction will convert the carbon and nitrogen in the organic waste into gas and discharge it into the atmosphere in a disorderly manner, which is easy to cause air pollution and lead to the loss of energy substances in the organic waste, and cannot achieve efficient utilization of waste.

[0004] Aerobic composting fermentation of solid organic waste has a long fermentation cycle, occupies a large area, and has unorganized gas emissions during the fermentation process, which pollutes the environment. In addition, the traditional composting fermentation method requires regular turning of the fermented materials, which requires large-scale turning equipment and manpower, and the overall reaction efficiency is low.

[0005] Anaerobic fermentation rarely produces waste gas, and its main product is biomass gas. The combustion of biomass gas does not produce toxic or harmful substances. However, anaerobic fermentation takes a long time, usually 20-30 days. If it is carried out in winter or when the ambient temperature is low, it is easy to cause the fermentation reaction to be inactive, the fermentation time to be long, and the fermentation to be incomplete, which will further extend the fermentation time. In addition, during the anaerobic fermentation process, if you want to achieve better fermentation results, the solid content of the fermentation material must be controlled within a certain range. Therefore, in order to ensure production volume, anaerobic fermentation equipment is usually large in size, which will increase construction and investment costs. In addition, during the anaerobic fermentation process, parameters such as fermentation temperature, pH value, and pressure are constantly changing and difficult to control. There is a lack of effective technical means to accurately control various parameters. Utility Model Content

[0006] The utility model provides an integrated organic waste fermentation treatment device to solve the technical problems of low production efficiency and high cost in the prior art of organic waste treatment.

[0007] The technical solution of an integrated organic waste fermentation treatment device provided by the utility model is:

[0008] An integrated organic waste fermentation treatment device includes a fermentation device, which has a double-layer structure, the inner layer being a material fermentation area, and the outer layer being a heat preservation circulation area. The material fermentation area is provided with a grouting port, a slurry outlet, a slag discharge port, an air inlet, an exhaust port, a bacteria addition port, and a water addition port. The grouting port is connected to the pulping equipment through a grouting pump, and the slurry outlet is connected to the bacteria liquid circulation equipment through a slurry discharge pump. The bacteria liquid circulation equipment is provided with a bacteria liquid outlet, and the bacteria liquid outlet is connected to the pulping equipment through the bacteria liquid circulation pump; a conical trough is provided at the bottom of the material fermentation area, the slag discharge port is arranged on the side wall of the conical trough and close to the bottom, a slag discharge valve is provided at the slag discharge port, and the slag discharge port is connected to the bacteria slag circulation equipment through a slag discharge pump. An exhaust valve is provided at the exhaust port; the insulation circulation area is used to inject insulation circulating liquid, and the insulation circulation area is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected to the heat storage equipment through the circulating liquid pump, and the liquid outlet is connected to the heat storage equipment, and the heat storage equipment is used to heat the circulating liquid; the material fermentation area is also provided with a pH sensor and a pressure sensor, and the pH sensor and the pressure sensor are communicated and connected to the control device. A stirring device is provided in the material fermentation area. The integrated organic waste fermentation treatment device also includes a circulating pump. The grouting pump, slurry pump, slag pump, circulating liquid pump and circulating pump are all controlled to start and stop by the control device. The slag valve and the exhaust valve are both controlled to switch by the control device, and the exhaust port is connected to the gas storage cabinet.

[0009] Furthermore, the air inlet, the exhaust port, the bacteria adding port, the water adding port and the pH sensor are all arranged on the top of the fermentation equipment.

[0010] Furthermore, a reserved opening is provided on the fermentation equipment, and the reserved opening is arranged on the top of the fermentation equipment.

[0011] Furthermore, the side wall of the fermentation equipment is provided with a sampling port, and there are 5 sampling ports in total, which are arranged in the vertical direction.

[0012] Furthermore, two pressure sensors are provided, namely an upper pressure sensor and a lower pressure sensor. The upper pressure sensor is arranged on the side wall of the fermentation equipment and close to the top, and the lower pressure sensor is arranged on the side wall of the fermentation equipment and close to the bottom.

[0013] Furthermore, there are two fermentation equipments, namely the first fermentation equipment and the second fermentation equipment. The slurry outlet of the first fermentation equipment is connected to the slurry injection port of the second fermentation equipment through the first slurry discharge pump, and the slurry outlet of the second fermentation equipment is connected to the bacterial liquid circulation equipment through the second slurry discharge pump.

[0014] Furthermore, the integrated organic waste fermentation treatment device also includes an integrated outer box, and the integrated box body is provided with an exhaust device. The circulating liquid pump, grouting pump, first slurry discharge pump, second slurry discharge pump, bacteria liquid circulation pump and slag discharge pump are arranged side by side from back to front on one side of the integrated outer box, and the pulping equipment, first fermentation equipment, second fermentation equipment, bacteria slag circulation equipment, and bacteria liquid circulation equipment are arranged in sequence from left to right in the integrated box body.

[0015] Furthermore, two exhaust devices are provided, which are arranged on the two wide side walls of the integrated outer box. Beneficial effects

[0016] 1. By setting up a double-layer structure of the fermentation equipment and setting the heat preservation circulation zone outside the material fermentation zone, the heat preservation circulation liquid is circulated and heated by the heat storage equipment to control the reaction temperature of the material fermentation zone to be constant, thereby effectively ensuring the fermentation efficiency of organic waste.

[0017] 2. The pressure value detected by the pressure sensor on the fermentation equipment is used to control the exhaust valve switch for autonomous exhaust, thereby realizing autonomous exhaust of the organic waste reaction. Intermittent slag discharge is achieved by controlling the slag discharge valve switch and the opening and closing of the slag discharge pump. In addition, the conical groove at the bottom of the fermentation equipment ensures the continuity of the slag discharge process, avoiding the accumulation of solid sediment at the bottom of the fermentation equipment. The exhaust and slag discharge are smooth, ensuring the size of the reaction area of ​​the fermentation equipment, thereby ensuring the fermentation efficiency of the organic waste.

[0018] 3. Pulping pretreatment is carried out in the pulping equipment to ensure the quality of pulping and ensure that the materials are fully mixed before fermentation, thereby improving the fermentation efficiency of organic waste.

[0019] 4. By setting up a bacterial liquid circulation device, the fermented bacterial liquid is purified and can be recycled, effectively reducing the waste of water resources and thus reducing costs. In addition, the biomass gas after anaerobic fermentation is stored in the gas storage cabinet and used for gas-fired power generation and to supplement power supply to the entire device, which can effectively reduce the operating costs of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of Example 1 provided by the present utility model;

[0021] Figure 2 This is a schematic diagram of Example 1 provided by the present utility model;

[0022] Figure 3 This is a schematic diagram of the heat preservation circulation area of ​​Example 1 provided by the present utility model;

[0023] Figure 4 It is a top view of Example 1 provided by the utility model;

[0024] 1. Pulping equipment; 21. First fermentation equipment; 22. Second fermentation equipment; 23. Material fermentation area; 24. Insulation circulation area; 26. Conical trough; 233. Slag discharge port; 234. Inlet and outlet ports; 236. Bacteria addition port; 237. Water addition port; 238. Reserved port; 239. Sampling port; 241. Water outlet; 242. Liquid inlet; 251. pH sensor; 252. Pressure sensor; 3. Bacteria slag circulation equipment; 4. Bacteria liquid circulation equipment; 6. Heat storage equipment; 7. Control device; 8. Integrated outer box; 81. Exhaust equipment; 9. Gas storage cabinet. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.

[0026] Specific embodiment 1 of an integrated organic waste fermentation treatment device provided by the present utility model:

[0027] This embodiment provides an integrated organic waste fermentation treatment device, such as Figure 1 , Figure 3 As shown, the fermentation equipment comprises a double-layer structure, with the inner layer being the material fermentation area and the outer layer being the heat preservation circulation area. The material fermentation area is equipped with a grouting port, a slurry outlet, a slag discharge port, an air inlet, an exhaust port, a reserved port, a bacteria addition port, and a water addition port. The grouting port is connected to the pulping equipment via a grouting pump. The pulping equipment is used to pulp the fermented material and pre-treat the fermented material through the action of microorganisms. The slurry outlet is connected to the culture liquid circulation equipment via a slurry discharge pump. The culture liquid circulation equipment is provided with a culture liquid outlet, which is connected to the pulping equipment via a culture liquid circulation pump. The culture liquid circulation equipment is used to temporarily store and purify the separated culture liquid. Under the action of microorganisms, water resources are treated. The treated water resources are then transported back to the pulping equipment, realizing water recycling. In this embodiment, the fermentation equipment has a double-layer barrel structure and uses microbial inoculants to treat the culture liquid in the culture liquid circulation equipment. In other embodiments, water purification can also be achieved through suction filtration or filtration.

[0028] like Figure 2 As shown, the material fermentation area is also equipped with a pH sensor and a pressure sensor, which are communicatively connected to the control device. The pressure sensors include an upper pressure sensor and a lower pressure sensor. The upper pressure sensor is located on the side wall of the fermentation equipment near the top, and the lower pressure sensor is located on the side wall of the fermentation equipment near the bottom. The pH sensor is located at the top of the fermentation equipment. The upper and lower pressure sensors detect pressure changes at different locations in the material fermentation area of ​​the fermentation equipment and transmit the detected pressure data to the control device.

[0029] like Figure 2As shown, a stirring device is provided in the material fermentation area, and the stirring device is driven by a stirring motor, and the stirring motor is arranged in the top center of the fermentation equipment. The grouting port, slurry outlet, slag discharge port, air inlet, exhaust port, reserved port, bacteria addition port and water addition port are all arranged at the top of the fermentation equipment, and an exhaust valve is provided at the exhaust port. The side wall of the fermentation equipment is also provided with a sampling port, and there are 5 sampling ports in total, which are arranged in the vertical direction. A conical trough is provided at the bottom of the material fermentation area, and the slag discharge port is provided on the side wall of the conical trough and close to the bottom. A slag discharge valve is provided at the slag discharge port, and the slag discharge port is connected to the bacteria slag circulation equipment through a slag discharge pump. The slag discharge valve and the exhaust valve are both controlled by the control device. The bacteria slag circulation equipment is used to temporarily store the separated bacteria slag. When the bacteria slag is stored to a certain amount, it is recycled and processed externally. After the fermentation is completed in the material fermentation area, the suspended solids naturally settle, thereby completing the solid-liquid separation, and the solid sediment is discharged from the outlet pipe of the slag discharge pump. When the solid sediment is discharged, it can be concentrated along the inclined side wall of the conical trough to the middle of the bottom of the conical trough, avoiding accumulation at a position far away from the outlet pipe of the slag discharge pump, so as to be easily discharged under the action of the slag discharge pump.

[0030] like Figure 3 As shown, the insulation circulation area is used to inject insulation circulation liquid. The insulation circulation area is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected to the heat storage device through the circulating liquid pump, and the liquid outlet is connected to the heat storage device. The heat storage device is used to heat the circulating liquid to ensure that the temperature of the insulation circulation liquid remains constant. The insulation circulation area located outside the material fermentation area can use the insulation circulation liquid injected in the circulation to keep the temperature of the material fermentation area at a constant level, ensuring that the fermentation environment is at an optimal level, thereby effectively ensuring the efficiency of the organic waste fermentation treatment. In addition, in the case of low ambient temperature such as winter, there will be no problem of reduced treatment efficiency. The integrated organic waste fermentation treatment device also includes a circulation pump, and the grouting pump, slurry discharge pump, slag discharge pump, circulating liquid pump and circulation pump are all controlled to start and stop by the control device.

[0031] In this embodiment, the exhaust port is connected to a gas storage tank, and the exhaust valve is a solenoid valve. The gas storage tank is used for gas-fired power generation. The biomass gas produced by anaerobic fermentation enters the gas storage tank to generate electricity, which then provides additional power to the grouting pump, slurry discharge pump, and thermal storage equipment. This effectively achieves full energy utilization and prevents the generation of excess exhaust gas that would further pollute the environment. When the upper pressure sensor detects that the pressure reaches a set value, the exhaust valve is controlled to open, and the biomass gas produced by fermentation is automatically delivered to the gas storage tank under the action of the internal pressure of the fermentation equipment.

[0032] like Figure 4As shown. In this embodiment, two fermentation equipment are provided: a first fermentation equipment and a second fermentation equipment. The slurry outlet of the first fermentation equipment is connected to the second fermentation equipment via a first metering pump, and the slurry outlet of the second fermentation equipment is connected to the culture liquid circulation equipment via a second metering pump. The culture liquid circulation equipment has a culture liquid outlet, which is connected to the pulping equipment via a culture liquid pump. In other embodiments, only one fermentation equipment may be provided.

[0033] The integrated organic waste fermentation treatment device also includes an integrated outer box. The integrated box is provided with an exhaust device. There are two exhaust devices, which are arranged on the two wide side walls of the integrated outer box. The circulating liquid pump, grouting pump, first slurry discharge pump, second slurry discharge pump, bacteria liquid circulation pump and slag discharge pump are arranged side by side from back to front on one side of the integrated outer box. The pulping equipment, first fermentation equipment, second fermentation equipment, bacteria slag circulation equipment, and bacteria liquid circulation equipment are arranged in sequence from left to right in the integrated box, and the gas storage cabinet is arranged directly below the slag discharge pump.

Claims

1. An integrated organic waste fermentation treatment device, characterized in that: The fermentation equipment comprises a double-layer structure, wherein the inner layer is a material fermentation area, and the outer layer is a heat preservation circulation area. The material fermentation area is provided with a grouting port, a slurry outlet, a slag discharge port, an air inlet, an exhaust port, a bacteria adding port and a water adding port. The grouting port is connected to the pulping equipment through a grouting pump, the slurry outlet is connected to the bacteria liquid circulation equipment through a slurry discharge pump, the bacteria liquid circulation equipment is provided with a bacteria liquid outlet, and the bacteria liquid outlet is connected to the pulping equipment through the bacteria liquid circulation pump; a conical groove is provided at the bottom of the material fermentation area, the slag discharge port is arranged on the side wall of the conical groove and close to the bottom, a slag discharge valve is provided at the slag discharge port, the slag discharge port is connected to the bacteria slag circulation equipment through a slag discharge pump, and the exhaust port is provided with an exhaust port. Valve; the insulation circulation area is used to inject insulation circulation liquid, and the insulation circulation area is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected to the heat storage equipment through the circulating liquid pump, and the liquid outlet is connected to the heat storage equipment. The heat storage equipment is used to heat the circulating liquid; the material fermentation area is also provided with a pH sensor and a pressure sensor, and the pH sensor and the pressure sensor are communicated and connected to the control device. A stirring device is provided in the material fermentation area. The integrated organic waste fermentation treatment device also includes a circulating pump. The grouting pump, slurry pump, slag pump, circulating liquid pump and circulating pump are all controlled to start and stop by the control device. The slag valve and the exhaust valve are both controlled to switch by the control device, and the exhaust port is connected to the gas storage cabinet.

2. The integrated organic waste fermentation treatment device according to claim 1, characterized in that: The air inlet, exhaust port, bacteria adding port, water adding port and pH sensor are all arranged on the top of the fermentation equipment.

3. The integrated organic waste fermentation treatment device according to claim 2, characterized in that: The fermentation equipment is also provided with a reserved opening, which is arranged on the top of the fermentation equipment.

4. The integrated organic waste fermentation treatment device according to claim 3, characterized in that: The side wall of the fermentation equipment is also provided with a sampling port, with a total of 5 sampling ports arranged in a vertical direction.

5. The integrated organic waste fermentation treatment device according to claim 4, characterized in that: There are two pressure sensors, namely an upper pressure sensor and a lower pressure sensor. The upper pressure sensor is arranged on the side wall of the fermentation equipment and close to the top, and the lower pressure sensor is arranged on the side wall of the fermentation equipment and close to the bottom.

6. The integrated organic waste fermentation treatment device according to any one of claims 1 to 5, characterized in that: There are two fermentation equipments, namely the first fermentation equipment and the second fermentation equipment. The slurry outlet of the first fermentation equipment is connected to the slurry injection port of the second fermentation equipment through the first slurry discharge pump, and the slurry outlet of the second fermentation equipment is connected to the bacterial liquid circulation equipment through the second slurry discharge pump.

7. The integrated organic waste fermentation treatment device according to claim 6, characterized in that: The integrated organic waste fermentation treatment device also includes an integrated outer box. The integrated box is equipped with exhaust equipment. The circulating liquid pump, grouting pump, first slurry discharge pump, second slurry discharge pump, bacteria liquid circulation pump and slag discharge pump are arranged side by side from back to front on one side of the integrated outer box. The pulping equipment, first fermentation equipment, second fermentation equipment, bacteria slag circulation equipment, and bacteria liquid circulation equipment are arranged in sequence from left to right in the integrated box.

8. The integrated organic waste fermentation treatment device according to claim 7, characterized in that: There are two exhaust devices, which are arranged on the two wide side walls of the integrated outer box.

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