Biomass solid waste anaerobic reaction equipment

Abstract

The utility model discloses biomass solid waste anaerobic reaction equipment, which comprises a tank-shaped anaerobic reactor, a stirring device, a positive and negative pressure protector and a working platform, and the stirring device, the positive and negative pressure protector and the working platform are matched, so that the anaerobic reactor can be fully utilized on the premise that the volume of the anaerobic reactor is increased. A good treatment effect on the biomass solid waste is kept; wherein the stirring device adopts a shaft rod rotationally arranged in the reaction cavity to drive a plurality of groups of stirring blades to stir and rotate in the reaction cavity, so that sand setting of slurry can be reduced on the premise of low-power stirring and rotating, slurry with a better homogenizing effect is obtained, and the pressure in the reaction cavity can be effectively adjusted in real time in cooperation with a positive and negative pressure protector; therefore, the anaerobic reactor cannot deform due to the influence of overpressure, and the large-volume anaerobic reactor is protected.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to an anaerobic reaction device for biomass solid waste. Background Technology

[0002] With the rapid development of my country's social economy and the continuous improvement of urban modernization, the output of urban biomass solid waste is increasing daily. However, the treatment of biomass solid waste lags significantly behind the development level of urban environmental governance. Large quantities of untreated biomass solid waste will lead to environmental problems such as land and water resource shortages and non-point source pollution. Therefore, the harmless treatment and resource utilization of biomass solid waste is an urgent problem to be solved. In the field of biomass solid waste treatment, large-capacity wet anaerobic reactors have been applied to treat biomass solid waste such as kitchen waste, food waste, and excrement.

[0003] Addressing the characteristics of biomass solid waste, such as its high organic content and biodegradability, this study utilizes anaerobic fermentation, the mainstream technology for biomass solid waste resource utilization in my country. Pretreated biomass solid waste undergoes anaerobic fermentation in an anaerobic reactor, simultaneously rendering and reducing its volume while converting the organic matter into biogas energy that can be utilized as a resource. However, current anaerobic reactors in the industry have relatively small capacities, with most volumes concentrated between 5000-6000 m³. 3 The existing facilities are insufficient to handle the ever-increasing scale of biomass solid waste treatment. Therefore, it is necessary to construct larger-capacity anaerobic reactors for biomass solid waste to meet the treatment requirements. Utility Model Content

[0004] The purpose of this invention is to provide an anaerobic reaction device for biomass solid waste, which solves the problem of insufficient capacity caused by the lack of supporting components in existing anaerobic reaction devices to meet the requirements of large-capacity anaerobic reactions.

[0005] The present invention provides the following technical solution: an anaerobic reactor for biomass solid waste, comprising a tank-shaped anaerobic reactor, a stirring device, a positive and negative pressure protector, and a working platform. The anaerobic reactor has a reaction chamber inside, and an inlet and an overflow outlet connected to the reaction chamber are provided on the anaerobic reactor. The stirring device includes a shaft located within the reaction chamber and multiple sets of stirring blades. The shaft is rotatably arranged around its axial direction, and the multiple sets of stirring blades are arranged along the extension direction of the shaft. The working platform is located on top of the anaerobic reactor. The stirring device also includes a stirring driver located on the working platform, which drives the shaft to rotate, thereby causing the stirring blades to rotate. The positive and negative pressure protector is located on the working platform and connected to the anaerobic reactor, and is used to regulate the gas pressure within the reaction chamber.

[0006] The anaerobic reactor for biomass solid waste described above has a volume of 9000–10000 m³. 3 .

[0007] In the anaerobic reactor for biomass solid waste described above, the height of the anaerobic reactor is greater than its diameter.

[0008] As described above, in an anaerobic reactor for biomass solid waste, the anaerobic reactor has an anti-corrosion layer covering the inner wall of the reaction chamber.

[0009] In the above-described anaerobic reaction equipment for biomass solid waste, the anti-corrosion layer is an epoxy phenolic coating.

[0010] In the anaerobic reactor for biomass solid waste described above, the shaft and the anaerobic reactor are coaxially arranged.

[0011] The biomass solid waste anaerobic reaction equipment described above further includes a sampling box located outside the anaerobic reactor. The sampling box is connected to the reaction chamber and is used to sample the slurry located in the reaction chamber.

[0012] The biomass solid waste anaerobic reaction equipment described above also includes a thermometer located outside the anaerobic reactor. The thermometer is inserted into the outer wall of the anaerobic reactor and is used to monitor the temperature inside the reaction chamber.

[0013] The anaerobic reactor for biomass solid waste described above further includes a temperature control device located outside the anaerobic reactor. The temperature control device is connected to the reaction chamber and is used to regulate the temperature inside the reaction chamber.

[0014] As described above, in a biomass solid waste anaerobic reactor, a staircase is provided on the outside of the anaerobic reactor. The bottom of the staircase is located at the bottom of the anaerobic reactor, and the top of the staircase is connected to the working platform. The staircase is arranged in a spiral shape around the side of the anaerobic reactor.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The biomass solid waste anaerobic reactor of this utility model is equipped with a tank-shaped anaerobic reactor and adopts a combination of a stirring device, a positive and negative pressure protector and a working platform. This allows the anaerobic reactor to maintain a good treatment effect on biomass solid waste while increasing the volume design. The stirring device uses a shaft that rotates inside the reaction chamber to drive multiple sets of stirring blades to stir and rotate inside the reaction chamber. This can reduce the sedimentation of the slurry and obtain a slurry with better homogeneity under low-power stirring. In conjunction with the positive and negative pressure protector, the pressure inside the reaction chamber can be effectively adjusted in real time, so that the anaerobic reactor will not be deformed due to overpressure and protect the large-volume anaerobic reactor.

[0017] 2. The volume of the biomass solid waste anaerobic reaction equipment of this utility model can be increased to 9000-10000 m³. 3 It can process more biomass solid waste at once.

[0018] 3. The biomass solid waste anaerobic reaction equipment of this utility model adopts a height greater than diameter setting in the tank body of the anaerobic reactor, which can ensure the increase of volume while saving the floor space.

[0019] 4. The biomass solid waste anaerobic reaction equipment of this utility model adopts an epoxy phenolic coating as an anti-corrosion layer on the inner wall of the reaction chamber, which improves the heat resistance and anti-corrosion performance of the anaerobic reactor. Attached Figure Description

[0020] Figure 1 This is a front perspective view of the anaerobic reaction equipment for biomass solid waste according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Anaerobic reactor; 2. Stirring device; 3. Positive and negative pressure protector; 4. Working platform; 5. Sampling box; 6. Thermometer; 7. Temperature control device; 11. Reaction chamber; 12. Feed inlet; 13. Overflow outlet; 14. Staircase; 21. Shaft; 22. Stirring blade; 23. Stirring actuator; 111. Anti-corrosion coating. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to the appendix Figure 1This embodiment provides an anaerobic reactor for biomass solid waste, including a tank-shaped anaerobic reactor 1, a stirring device 2, a positive and negative pressure protector 3, and a working platform 4. The anaerobic reactor 1 has a reaction chamber 11 inside, and an inlet 12 and an overflow 13 connected to the reaction chamber 11. The stirring device 2 includes a shaft 21 located in the reaction chamber 11 and multiple sets of stirring blades 22. The shaft 21 is rotatably arranged around the axial direction, and the multiple sets of stirring blades 22 are arranged on the shaft 21 along the extension direction of the shaft 21. The working platform 4 is located on the top of the anaerobic reactor 1. The stirring device 2 also includes a stirring driver 23 located on the working platform 4. The stirring driver 23 is used to drive the shaft 21 to rotate, thereby driving the stirring blades 22 to rotate. The positive and negative pressure protector 3 is located on the working platform 4 and connected to the anaerobic reactor 1, and is used to regulate the gas pressure in the reaction chamber 11. The anaerobic reactor for biomass solid waste in this embodiment is equipped with a tank-shaped anaerobic reactor 1. It utilizes a stirring device 2, a positive and negative pressure protector 3, and a working platform 4 to maintain good treatment efficiency for biomass solid waste while increasing the reactor's volume. The stirring device 2 employs a rotating shaft 21 within the reaction chamber 11, driving multiple sets of stirring blades 22 to rotate and agitate the slurry within the chamber. This reduces sediment buildup in the slurry while maintaining low-power agitation. The stirring device 2 includes a stirring actuator 23 with a scum-breaking function and a scum remover, effectively preventing scum accumulation and crusting at the top of the anaerobic reactor during long-term operation, effectively homogenizing the biomass slurry, and reducing sediment buildup at the bottom of the reactor. Preferably, the stirring device 2 uses a high-efficiency central vertical mixer, centrally and vertically installed at the top of the anaerobic reactor for easier maintenance and to ensure thorough mixing of the biomass slurry within the reactor. The mixer water seal level has an automatic detection function, which can effectively prevent biogas leakage and obtain a slurry with better homogenization. In conjunction with the positive and negative pressure protector 3, it can effectively adjust the pressure in the reaction chamber 11 in real time. The positive and negative pressure protector 3 can be adjusted according to actual needs to meet different safety pressure protection ranges, so that the anaerobic reactor 1 will not be affected by overpressure and deformed, thus protecting the large-volume anaerobic reactor 1.

[0024] Preferably, the volume of anaerobic reactor 1 is 9000–10000 m³. 3 The volume can be increased to 9000-10000 m³. 3 This allows anaerobic reactor 1 to process more biomass solid waste at once.

[0025] Preferably, the height of the anaerobic reactor 1 is greater than its diameter. By setting the height-to-diameter ratio of the anaerobic reactor 1, the height is greater than the diameter, which can ensure the increase in volume while saving floor space.

[0026] Preferably, the anaerobic reactor 1 has an anti-corrosion layer 111 covering the inner wall of the reaction chamber 11. Further, the anti-corrosion layer 111 is an epoxy phenolic coating. By adding an epoxy phenolic coating as an anti-corrosion layer 111 to the inner wall of the reaction chamber 11, the heat resistance and anti-corrosion performance of the anaerobic reactor 1 are improved.

[0027] Preferably, the shaft 21 is coaxial with the anaerobic reactor 1, so that the stirring device 2 can achieve the best stirring effect with relatively low power.

[0028] The biomass solid waste anaerobic reactor also includes a sampling box 5 located outside the anaerobic reactor 1. The sampling box 5 is connected to the reaction chamber 11 and is used to sample the slurry located within the reaction chamber 11. Preferably, the sampling box 5 is a closed type, with the sampling tube connected to the inside of the box. This prevents slurry dripping during sampling, effectively prevents odor leakage, and includes a rinsing system to facilitate sampling and testing of various parameters within the anaerobic reactor 1.

[0029] The biomass solid waste anaerobic reaction equipment also includes a thermometer 6 located outside the anaerobic reactor 1. The thermometer 6 is inserted into the outer wall of the anaerobic reactor 1 and is used to monitor the temperature inside the reaction chamber 11, so that the operator can understand the temperature environment inside the reaction chamber 11 in real time.

[0030] The biomass solid waste anaerobic reactor also includes a temperature control device 7 located outside the anaerobic reactor 1. The temperature control device 7 is connected to the reaction chamber 11 and is used to regulate the temperature inside the reaction chamber 11. The temperature control device 7 outside the anaerobic reactor 1 can regulate the stability of the reaction inside the reaction chamber 11, realize the switching between high-temperature and mesophilic anaerobic fermentation, and quickly achieve stable operation.

[0031] A staircase 14 is provided on the outside of the anaerobic reactor 1. The bottom of the staircase 14 is located at the bottom of the anaerobic reactor 1, and the top of the staircase 14 is connected to the working platform 4. The staircase 14 is arranged in a spiral shape around the side of the anaerobic reactor 1, which facilitates the operator to climb from the ground to the working platform 4 to carry out work inspection of the anaerobic reaction setup.

[0032] The operation process of the biomass solid waste anaerobic reactor in this embodiment is as follows: the pretreated biomass solid waste slurry enters the tank of the anaerobic reactor 1 through the feed inlet 12. The capacity of the anaerobic reactor 1 is larger than that of common anaerobic reactors in the industry, and it can process more biomass solid waste slurry at one time. The slurry in the anaerobic reactor 1 is stirred by the stirring device 2 to homogenize the biomass slurry and reduce the sediment at the bottom of the anaerobic reactor 1. During the fermentation of the biomass solid waste slurry, the reaction temperature is controlled within a suitable range by the temperature control device 7 outside the anaerobic reactor 1, and the temperature in the reaction chamber 11 of the anaerobic reactor 1 is monitored by the thermometer 6. The operator can take samples through the sampling box 5 to test various indicators in the anaerobic reactor, thereby judging the operating status.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass solid waste anaerobic reaction apparatus, characterized by: The utility model provides an anaerobic reactor, which comprises a tank-shaped anaerobic reactor (1), a stirring device (2), a positive and negative pressure protector (3) and a working platform (4), wherein the anaerobic reactor (1) is internally provided with a reaction cavity (11), the anaerobic reactor (1) is provided with a feed inlet (12) and an overflow port (13) communicated with the reaction cavity (11), the stirring device (2) comprises a shaft (21) and a plurality of groups of stirring blades (22) located in the reaction cavity (11), the shaft (21) is arranged to rotate around the axis, and the plurality of groups of stirring blades (22) are arranged on the shaft (21) along the extension direction of the shaft (21), the working platform (4) is arranged on the top of the anaerobic reactor (1), the stirring device (2) further comprises a stirring driver (23) arranged on the working platform (4), the stirring driver (23) is used to drive the shaft (21) to rotate so as to drive the stirring blades (22) to rotate, and the positive and negative pressure protector (3) is arranged on the working platform (4) and connected to the anaerobic reactor (1) and used to adjust the air pressure in the reaction cavity (11).

2. The biomass solid waste anaerobic reaction apparatus according to claim 1, characterized in that: The volume of the anaerobic reactor (1) is 9000-10000 m 3 .

3. The apparatus according to claim 1, wherein: The height of the anaerobic reactor (1) is greater than the diameter.

4. The apparatus according to claim 1, wherein: The anaerobic reactor (1) is covered with a corrosion-resistant layer (111) on the inner wall of the reaction cavity (11).

5. The apparatus according to claim 4, wherein: The corrosion-resistant layer (111) is epoxy phenolic paint.

6. The apparatus according to claim 1, wherein: The shaft (21) and the anaerobic reactor (1) are coaxially arranged.

7. The apparatus according to claim 1, wherein: Further comprising a sampling box (5) arranged outside the anaerobic reactor (1), the sampling box (5) is connected to the reaction cavity (11) and used to sample the slurry in the reaction cavity (11).

8. The apparatus according to claim 1, wherein: Further comprising a thermometer (6) arranged outside the anaerobic reactor (1), the thermometer (6) is inserted into the outer wall of the anaerobic reactor (1) and used to monitor the temperature in the reaction cavity (11).

9. The apparatus according to claim 1, wherein: Further comprising a temperature control device (7) arranged outside the anaerobic reactor (1), the temperature control device (7) is connected to the reaction cavity (11) and used to adjust the temperature in the reaction cavity (11).

10. The apparatus according to claim 1, wherein: The anaerobic reactor (1) is provided with a staircase (14), the bottom of the staircase (14) is located at the bottom of the anaerobic reactor (1), the top of the staircase (14) is connected to the working platform (4), and the staircase (14) is arranged in a spiral shape around the side surface of the anaerobic reactor (1).

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