High-efficiency high-solid-content biogas slurry and material stirring and heating device

Abstract

The utility model relates to a high-efficiency high-solid-content biogas slurry and material stirring and heating device, which comprises a stirring tank, an arc-shaped heat conducting plate is fixedly connected in the stirring tank, the heat conducting plate divides an inner cavity of the stirring tank into an upper stirring cavity and a lower heating cavity, a heating pipe is arranged in the heating cavity, a stirring mechanism is arranged in the stirring cavity, and the stirring mechanism is arranged in the heating cavity. And the bottom of the stirring tank is fixedly connected with a discharging pipe communicated with the stirring cavity. According to the biogas slurry stirring device, materials and biogas slurry in the stirring cavity are mixed and stirred through the stirring mechanism, and the heating cavity is heated through the heating pipe, so that the biogas slurry is heated while being stirred, the biogas slurry is more easily mixed with the materials, and the fermentation speed and the stirring efficiency are improved. And the heat conducting plate is arc-shaped and has a flow guide effect, so that materials are not easy to accumulate at the bottom during discharging, the materials are convenient to discharge, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass and biogas slurry mixing and stirring, in particular to a stirring and heating device for high-efficiency and high-solid-content biogas slurry and materials. Background Art

[0002] The biogas produced by biomass fermentation is a green, low-carbon, clean and renewable energy source. During the fermentation process, it is necessary to mix and stir biomass materials and biogas slurry. However, the existing biogas production stirring equipment is usually large in volume. When stirring biomass and biogas slurry, the stirring efficiency is low, the fermentation speed is slow, and there is a problem of material accumulation at the bottom during discharging of the stirring equipment, which needs to be cleaned regularly and is inconvenient to use. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a stirring device with fast and uniform stirring, which improves the stirring efficiency and fermentation speed, and the materials at the bottom are not easy to accumulate during discharging, making it more convenient to use.

[0004] The utility model is realized by the following technical scheme. A stirring and heating device for high-efficiency and high-solid-content biogas slurry and materials includes a stirring tank. An arc-shaped heat conduction plate is fixedly connected inside the stirring tank. The heat conduction plate divides the inner cavity of the stirring tank into a stirring cavity above and a heating cavity below. A water inlet pipe and a water outlet pipe communicated with the heating cavity are arranged on the outer wall of the stirring tank. A stirring mechanism is arranged in the stirring cavity, and a discharge pipe communicated with the stirring cavity is fixedly connected to the bottom of the stirring tank.

[0005] In this scheme, the stirring mechanism is used to mix and stir the materials and biogas slurry in the stirring cavity. Hot water is introduced into the heating cavity through the water inlet pipe, so that the biogas slurry is heated while being stirred, making the biogas slurry easier to mix with the materials, improving the fermentation speed and stirring efficiency. And the arc-shaped heat conduction plate has a guiding effect, and the materials are not easy to accumulate at the bottom during discharging, facilitating the discharge of the materials and making it more convenient to use.

[0006] As an optimization, the stirring tank is of a trapezoidal structure. In this optimized scheme, the bottom area of the trapezoidal stirring tank is reduced, which is convenient for the biogas slurry to flow downward, further reducing the accumulation of materials at the bottom of the stirring tank.

[0007] As an optimization, the bottom of the arc-shaped heat conduction plate is in contact with the bottom of the stirring tank and divides the heating cavity into two parts on the left and right. The water inlet pipe and the water outlet pipe are communicated with both the left and right parts of the heating cavity. In this optimized scheme, the heating cavity is divided, and the biogas slurry in the stirring cavity is heated by two heating cavities, improving the heating efficiency.

[0008] As an optimization, the stirring mechanism includes a stirring shaft rotatably connected to the stirring tank. Stirring blades are evenly distributed on the outer wall of the stirring shaft. A motor for driving the stirring shaft to rotate is fixedly connected to the outer wall of the stirring tank. In this optimized scheme, the motor drives the stirring shaft to rotate to realize the mixing of the materials.

[0009] As an optimization, three stirring mechanisms are provided in the stirring chamber. This optimization scheme improves the stirring efficiency through the three stirring mechanisms, enabling the biogas slurry and the material to be evenly mixed.

[0010] As an optimization, the three stirring mechanisms are distributed with two on the upper part and one on the lower part. This optimization scheme stirs the material up and down through the stirring mechanisms distributed up and down, improving the mixing uniformity.

[0011] As an optimization, the stirring blades of the stirring mechanisms distributed up and down are cross-distributed along the axial direction. This optimization scheme with cross-distributed stirring blades reduces the stirring blind area and makes the stirring more uniform.

[0012] As an optimization, a control valve is installed on the discharge pipe. This optimization scheme facilitates personnel to control the discharge.

[0013] The beneficial effects of the present utility model are as follows: The material and the biogas slurry in the stirring chamber are mixed and stirred through the stirring mechanism, and there are three stirring mechanisms distributed with two on the upper part and one on the lower part in the stirring chamber, greatly improving the stirring efficiency and the mixing uniformity. The arc-shaped heat conduction plate divides the trapezoidal stirring tank into a heating chamber to heat the biogas slurry, so that the biogas slurry is heated while being stirred, making the biogas slurry easier to mix with the material, improving the fermentation speed and the stirring efficiency, and the heat conduction plate is arc-shaped and has a guiding effect, and the material is not easy to accumulate at the bottom during discharging, facilitating the discharge of the material. The structure is simple and practical, easy to process, and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of the present utility model;

[0015] Figure 2 is a side view structural schematic diagram of the present utility model;

[0016] As shown in the figure:

[0017] 1, stirring tank; 2, heat conduction plate; 3, heating chamber; 4, stirring chamber; 5, stirring mechanism; 51, stirring shaft; 52, stirring blade; 53, motor; 6, water inlet pipe; 7, water outlet pipe; 8, discharge pipe; 9, control valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To clearly illustrate the technical features of this solution, the following elaborates on this solution through specific embodiments.

[0019] As Figures 1-2 shown, a stirring and heating device for high-efficiency and high-solid-content biogas slurry and material includes a stirring tank 1. In this embodiment, the cross-section of the stirring tank 1 is a trapezoidal structure, the top area of the stirring tank 1 is larger than the bottom area, and the bottom area of the stirring tank is reduced, facilitating the downward flow of the biogas slurry and reducing the accumulation of materials at the bottom of the stirring tank.

[0020] An arc-shaped heat conducting plate 2 is fixedly connected inside the stirring tank 1. The heat conducting plate 2 divides the inner cavity of the stirring tank 1 into an upper stirring cavity 4 and a lower heating cavity 3. A water inlet pipe 6 and a water outlet pipe 7 communicating with the heating cavity 3 are provided on the outer wall of the stirring tank 1, and a stirring mechanism 5 is provided in the stirring cavity 4. Further guiding through the arc-shaped heat conducting plate makes the material easier to discharge and further reduces the accumulation of materials at the bottom. And the biogas slurry is heated and raised in temperature through the heating cavity, making the biogas slurry easier to mix with the material, and improving the fermentation speed and stirring efficiency.

[0021] In this embodiment, the bottom of the arc-shaped heat conducting plate 2 is in contact with the bottom of the stirring tank 1 and divides the heating cavity 3 into two parts on the left and right. Both the left and right parts of the heating cavity 3 are communicated with the water inlet pipe 6 and the water outlet pipe 7. The water inlet pipe 7 and the water outlet pipe 6 are both fixedly connected to the outer wall of the stirring tank 1, and the water inlet pipe and the water outlet pipe are respectively communicated with the water outlet and water inlet of the hot water heating device to realize hot water circulation heating.

[0022] In this embodiment, a discharge pipe 8 communicating with the stirring cavity 4 is fixedly connected to the bottom of the stirring tank 1. A control valve 9 is installed on the discharge pipe. The control valve 9 is an electric control valve. A feed inlet and an exhaust pipe are provided at the top of the stirring tank 1.

[0023] The stirring mechanism 5 includes a stirring shaft 51 rotatably connected to the stirring tank 1. The stirring shaft 51 extends along the length direction of the stirring tank 1. Stirring blades 52 are evenly distributed on the outer wall of the stirring shaft 51. A motor 53 for driving the stirring shaft 51 to rotate is fixedly connected to the outer wall of the stirring tank 1. In this embodiment, three stirring mechanisms 5 are provided in the stirring cavity 4. The three stirring mechanisms 5 are distributed with two on the upper part and one on the lower part. And the stirring blades 52 of the stirring mechanisms 5 distributed vertically and horizontally are cross-distributed along the axis. Specifically, the two upper stirring mechanisms 5 are arranged parallel and opposite to each other in the horizontal direction. The one lower stirring mechanism is vertically located in the middle of the two upper stirring mechanisms. The stirring blades in the axial direction of the lower stirring mechanism are cross-set with the stirring blades in the axial direction of the two upper stirring mechanisms.

[0024] Working principle: Biogas slurry and biomass materials are added into the stirring cavity 4 of the stirring tank 1 and are mixed and stirred by three stirring mechanisms 5. Hot water is circularly input into the heating cavity 3 through a hot water heating device, so that the biogas slurry is heated and raised in temperature to 53 - 62 °C while being stirred, making the biogas slurry easier to mix with the material, improving the fermentation speed and stirring efficiency. After stirring, the mixed material is discharged through the discharge pipe.

[0025] Certainly, the above description is not limited to the above examples. The technical features not described in this utility model can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and accompanying drawings are only used to illustrate the technical solution of this utility model and are not a limitation to this utility model. The utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in this technical field within the substantial scope of this utility model do not depart from the purpose of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. An efficient stirring and heating device for biogas slurry and materials with high solid content rate, comprising a stirring tank (1), characterized in that: An arc-shaped heat conducting plate (2) is fixedly connected inside the stirring tank (1). The heat conducting plate (2) divides the inner cavity of the stirring tank (1) into a stirring chamber (4) above and a heating chamber (3) below. A water inlet pipe (6) and a water outlet pipe (7) communicating with the heating chamber (3) are arranged on the outer wall of the stirring tank (1). A stirring mechanism (5) is arranged in the stirring chamber (4), and a discharge pipe (8) communicating with the stirring chamber (4) is fixedly connected to the bottom of the stirring tank (1).

2. The stirring and heating device for highly efficient and high-solid-content biogas slurry and materials according to claim 1, wherein: The stirring tank (1) is of a trapezoidal structure.

3. An efficient stirring and heating device for biogas slurry and materials with high solid content according to claim 1, characterized in that: The bottom of the arc-shaped heat conducting plate (2) is in contact with the bottom of the stirring tank (1) and divides the heating chamber (3) into left and right parts. Both the left and right parts of the heating chamber are communicated with the water inlet pipe and the water outlet pipe.

4. An efficient high-solid-content biogas slurry and material stirring and heating device according to claim 1, characterized in that: The stirring mechanism (5) includes a stirring shaft (51) rotatably connected to the stirring tank (1). Stirring blades (52) are evenly distributed on the outer wall of the stirring shaft. A motor (53) for driving the stirring shaft to rotate is fixedly arranged on the outer wall of the stirring tank.

5. An efficient high-solid-content biogas slurry and material stirring and heating device according to claim 4, characterized in that: Three stirring mechanisms (5) are arranged in the stirring chamber (4).

6. The stirring and heating device for highly efficient high-solid-content biogas slurry and materials according to claim 5, characterized in that: The three stirring mechanisms (5) are distributed with two above and one below.

7. An efficient high-solid-content biogas slurry and material stirring and heating device according to claim 6, characterized in that: The stirring blades (52) of the stirring mechanisms (5) distributed vertically are distributed crosswise along the axis.

8. An efficient stirring and heating device for biogas slurry with high solid content and materials according to claim 1, characterized in that: A control valve (9) is installed on the discharge pipe (8).

Images