Fermentation raw material preheating device

Abstract

The utility model relates to a fermentation raw material preheating device, which effectively solves the problems of energy waste and fermentation time increase easily caused in the existing production. Comprising a rectangular raw material pool with an upward opening, a heating groove is formed in the raw material pool, a bent heat dissipation pipe is arranged on the rear side in the heating groove, the free end of the heat dissipation pipe is inserted into the front side of the heating groove, a left-right axial piston cylinder with a rightward opening is arranged at the front end of the raw material pool, and a piston plate capable of sliding left and right is coaxially arranged in the piston cylinder; an L-shaped liquid outlet pipe communicated with the front end of the heat dissipation pipe is arranged at the left end of the piston cylinder, and a liquid suction pipe located in front of the liquid outlet pipe and inserted into the heating groove is arranged at the left end of the piston cylinder; the device is simple in structure, novel in conception, convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas fermentation, in particular to a fermentation raw material preheating device. Background Art

[0002] Biogas fermentation is the process in which microorganisms decompose organic matter in raw materials to produce biogas, biogas slurry and biogas residue under a certain temperature and anaerobic environment. According to the optimal growth temperature, biogas microorganisms can be divided into mesophilic group (30-40℃) and thermophilic group (55-60℃). Although some people believe that biogas can still be produced at 4℃, no cryophilic bacteria have been isolated so far.

[0003] Therefore, when carrying out biogas fermentation, if the raw materials fed into the fermentation tank every day are preheated, the influence of the temperature of the raw materials fed daily on the liquid temperature in the anaerobic fermentation tank during operation can be minimized. However, in actual operation, the following defects exist: the temperature of the biogas slurry produced by fermentation in the fermentation tank is very high, but in actual operation, the biogas slurry is often directly discharged into the biogas slurry pool for cooling and storage, resulting in heat loss and energy waste. At the same time, the raw material liquid transported from the raw material pool to the fermentation tank needs to be reheated to the required temperature, which increases the fermentation reaction time. Utility Model Content

[0004] In view of the above situation, in order to make up for the shortcomings of the prior art, the purpose of the utility model is to provide a fermentation raw material preheating device, which effectively solves the problems of energy waste and increased fermentation time in the existing production.

[0005] The technical solution is as follows: the utility model comprises a rectangular raw material pool with an opening facing upward, a heating groove is provided in the raw material pool, a curved heat dissipation pipe is provided on the rear side of the heating groove, the free end of the heat dissipation pipe is inserted into the front side of the heating groove, a piston cylinder with a left-right axial direction and an opening facing right is provided at the front end of the raw material pool, a piston plate which can slide left-right is coaxially provided in the piston cylinder, an L-shaped liquid outlet pipe which is connected with the front end of the heat dissipation pipe is provided at the left end of the piston cylinder, and a liquid suction pipe which is located in front of the liquid outlet pipe and inserted into the heating groove is provided at the left end of the piston cylinder.

[0006] Compared with the prior art, the utility model has the beneficial effect that the raw materials in the raw material pool can be preheated by utilizing the higher temperature of the biogas slurry in the fermentation tank to increase the temperature of the raw materials. When the raw materials are input into the fermentation tank, there is no need to perform special heating and temperature raising, thus avoiding energy waste and saving fermentation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the main axonometric drawing of the utility model.

[0008] Figure 2 It is a full-section top view axonometric drawing of the utility model.

[0009] Figure 3 It is a full-section left-view axonometric drawing of the utility model.

[0010] Figure 4 It is a perspective axonometric drawing of the rotating shaft and the annular groove of the utility model.

[0011] Figure 5 It is a full-section main axonometric drawing of the utility model.

[0012] Figure 6 This utility model Figure 2 A is an enlarged view of the middle image.

[0013] Reference numerals:

[0014] 1. Raw material pool; 2. Heating tank; 3. Heat dissipation pipe; 4. Piston cylinder; 5. Piston plate; 6. Liquid outlet pipe; 7. Liquid suction pipe; 8. Connecting pipe; 9. Rotating shaft; 10. Annular groove; 11. Insert column; 12. Motor; 13. First one-way valve; 14. Second one-way valve; 15. Feed pipe; 16. Discharge pipe; 17. Drainage pipe; 18. Storage pipe. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited to the basic implementation disclosed below.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0018] Depend on Figures 1 to 6It includes a rectangular raw material pool 1 with an upward opening, a heating groove 2 is provided in the raw material pool 1, a curved heat dissipation pipe 3 is provided on the rear side of the heating groove 2, and the free end of the heat dissipation pipe 3 is inserted into the front side of the heating groove 2, a piston cylinder 4 with a left-right axial direction and an opening facing right is provided at the front end of the raw material pool 1, a piston plate 5 which can slide left and right is coaxially provided in the piston cylinder 4, an L-shaped liquid outlet pipe 6 which is connected to the front end of the heat dissipation pipe 3 is provided at the left end of the piston cylinder 4, and a liquid suction pipe 7 which is located in front of the liquid outlet pipe 6 and inserted into the heating groove 2 is provided at the left end of the piston cylinder 4.

[0019] In order to enable the piston plate 5 to move left and right in the piston cylinder 4, the piston plate 5 is coaxially slidably connected to the piston cylinder 4, a connecting tube 8 is coaxially provided at the right end of the piston plate 5, a rotating shaft 9 which is coaxial with the connecting tube 8 and can rotate is provided at the front end of the raw material pool 1, an annular groove 10 is opened on the rotating shaft 9, and a plug column 11 inserted into the annular groove 10 is provided in the connecting tube 8.

[0020] In order to rotate the rotating shaft 9 , a motor 12 is provided at the front end of the raw material pool 1 , and the output shaft of the motor 12 is coaxially and fixedly connected with the rotating shaft 9 .

[0021] In order to facilitate the flow of biogas slurry, a first one-way valve 13 with an opening facing left is provided in the liquid outlet pipe 6, and a second one-way valve 14 with an opening facing right is provided in the liquid suction pipe 7.

[0022] In order to facilitate feeding and discharging, a feeding pipe 15 is provided at the right end of the raw material pool 1, and a discharging pipe 16 is provided at the left end of the raw material pool 1.

[0023] In order to facilitate the input and output of biogas slurry, a drainage pipe 17 inserted into the heating tank 2 is provided at the left end of the raw material pool 1, and a storage pipe 18 inserted into the heating tank 2 is provided at the right end of the raw material pool 1.

[0024] When the utility model is in use, the raw material is first transported to the raw material pool 1 through the feed pipe 15, and then the drainage pipe 17 is connected to the lower side of the fermentation tank. When biogas slurry is produced in the fermentation tank, the switch is turned on to allow the biogas slurry with a higher temperature to flow into the heating tank 2 through the drainage pipe 17. After flowing for a period of time, the biogas slurry with a higher temperature fills the heating tank 2 and surrounds the raw material liquid in the raw material pool 1, thereby preheating the raw material and increasing the temperature of the raw material. At this time, the motor 12 is turned on, and the motor 12 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the annular groove 10 thereon to rotate. The annular groove 10 drives the connecting pipe 8 to slide rightward through the plug column 11, and the connecting pipe 8 further drives the piston plate 5 to move rightward in the piston cylinder 4. The piston plate 5 moves rightward to suck the biogas slurry in the heating tank 2 into the piston cylinder 4 through the liquid inlet pipe;

[0025] When the motor 12 rotates a certain angle, the plug post 11 slides to the rightmost side of the annular groove 10 and continues to rotate, starting to drive the plug post 11 to move leftward in the annular groove 10, thereby driving the connecting pipe 8 and the piston plate 5 to move leftward. The piston plate 5 moves leftward to squeeze the biogas liquid sucked into the piston cylinder 4 into the heat dissipation pipe 3 through the liquid outlet pipe 6. At this time, the second one-way valve 14 can prevent the biogas liquid in the piston cylinder 4 from being re-injected into the heating tank 2. The piston plate 5 moves a distance to the left and then returns to the initial position. The motor 12 continues to rotate and starts to drive the piston plate 5 to move rightward again, so as to suck the biogas liquid into the piston cylinder 4 again.

[0026] In this way, the motor 12 rotates continuously, driving the piston plate 5 to repeatedly move left and right in the piston cylinder 4, so that the biogas slurry in the heating tank 2 is continuously absorbed and injected into the heat dissipation pipe 3 until the heat dissipation pipe 3 is filled. Since the heat dissipation pipe 3 is curved, the contact area with the raw material is large, so the raw material in the raw material pool 1 can be fully heated to make the raw material rise;

[0027] Relevant temperatures are detected during heating. When the temperature of the biogas slurry in the heating tank 2 is low, the storage pipe 18 is opened to transport the biogas slurry with a low temperature in the heating tank 2 to the biogas slurry pool for storage. Then, the raw materials in the raw material pool 1 are transported to the anaerobic fermentation tank for fermentation through the discharge pipe 16. At this time, since the raw materials have been heated by the biogas slurry, there is no need to heat the tank body additionally, which saves energy and time.

[0028] Compared with the prior art, the utility model has the following beneficial effects: the raw material pool, heating tank, heat dissipation pipe and piston tube lamp are provided, so that the raw materials in the raw material pool can be preheated by utilizing the high-temperature biogas slurry in the fermentation tank, so that the temperature of the raw materials is increased, and when the raw materials are input into the fermentation tank, there is no need to perform special heating and temperature increase, thus avoiding energy waste, saving fermentation time and increasing work efficiency. The utility model has a simple structure, novel conception, is easy to use and has strong practicality.

[0029] It should be pointed out that, according to the needs of implementation, the various components described in the embodiments of the present utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of the present utility model.

[0030] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A fermentation raw material preheating device, comprising a rectangular raw material pool (1) with an opening facing upward, characterized in that: A heating tank (2) is provided in the raw material pool (1), a curved heat dissipation pipe (3) is provided at the rear side of the heating tank (2), a free end of the heat dissipation pipe (3) is inserted into the front side of the heating tank (2), a piston cylinder (4) with a left-right axial direction and an opening facing right is provided at the front end of the raw material pool (1), a piston plate (5) that can slide left-right is coaxially provided in the piston cylinder (4), an L-shaped liquid outlet pipe (6) that is connected to the front end of the heat dissipation pipe (3) is provided at the left end of the piston cylinder (4), and a liquid suction pipe (7) that is located in front of the liquid outlet pipe (6) and is inserted into the heating tank (2) is provided at the left end of the piston cylinder (4).

2. A fermentation raw material preheating device according to claim 1, characterized in that: The piston plate (5) is coaxially slidably connected to the piston cylinder (4); a connecting pipe (8) is coaxially provided at the right end of the piston plate (5); a rotating shaft (9) coaxial with the connecting pipe (8) and rotatable is provided at the front end of the raw material pool (1); an annular groove (10) is provided on the rotating shaft (9); and a plug post (11) inserted into the annular groove (10) is provided in the connecting pipe (8).

3. A fermentation raw material preheating device according to claim 1, characterized in that: A motor (12) is provided at the front end of the raw material pool (1), and an output shaft of the motor (12) is coaxially fixedly connected to the rotating shaft (9).

4. A fermentation raw material preheating device according to claim 1, characterized in that: A first one-way valve (13) with an opening facing leftward is provided in the liquid outlet pipe (6), and a second one-way valve (14) with an opening facing rightward is provided in the liquid suction pipe (7).

5. The fermentation raw material preheating device according to claim 1, characterized in that: A feed pipe (15) is provided at the right end of the raw material pool (1), and a discharge pipe (16) is provided at the left end of the raw material pool (1).

6. The fermentation raw material preheating device according to claim 1, characterized in that: The left end of the raw material pool (1) is provided with a drainage pipe (17) inserted into the heating tank (2), and the right end of the raw material pool (1) is provided with a storage pipe (18) inserted into the heating tank (2).

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