Straw raw material collection and storage warehouse applied to biomass gas production process

Abstract

The utility model discloses a straw raw material storage warehouse applied to a biomass gas production process, and belongs to the technical field of biomass gas production raw material storage. The warehouse comprises a warehouse body and further comprises a temperature sensor, a ventilation fan, an air blower and a controller. The temperature sensors are arranged at multiple positions in the warehouse body, the air blower is arranged in the warehouse body, the ventilation fan is arranged on a wall body on the upper portion of the warehouse body, and the output ends of the temperature sensors are connected with the input end of the controller; the control signal output end of the controller is connected with the control end of the ventilator and the control end of the air blower. A stand column is arranged in the middle of the warehouse body, and steel wire meshes are arranged on the periphery of the stand column and the inner side of the wall of the warehouse body. Ventilation is carried out according to the change condition of the temperature field of the sensor, and it is ensured that straw does not mildew. The intelligent control system is high in intelligent degree, capable of achieving high energy conservation and reducing equipment loss, extremely low in cost and convenient to install and debug.

Description

Technical Field

[0001] The utility model relates to a straw raw material storage warehouse used in a biomass gasification process, belonging to the technical field of biomass gasification raw material storage. Background Art

[0002] Biogas is a green, low-carbon, clean, renewable fuel gas that uses livestock and poultry manure, crop straw, urban organic household waste, industrial organic waste, etc. as raw materials to produce biogas through anaerobic fermentation. After purification, it is completely consistent with the composition and calorific value of conventional natural gas. Crop straw is seasonal, and biomass gas manufacturers crush and collect the straw from farmland in autumn and stack it in the factory warehouse.

[0003] Corn and other crop straws contain a certain amount of moisture, and their surfaces are easily contaminated by bacteria, mold and other microorganisms. During the fermentation process, if not handled properly, problems such as long retention time, insufficient or uneven temperature, and poor ventilation may occur, which may lead to the production of mold, pathogenic bacteria and other microorganisms inside the crop straw, eventually causing mildew.

[0004] Warehouses for collecting and storing straw raw materials are basically equipped with ventilation holes at the top of the warehouses to dissipate heat from the straw in the warehouses. However, they rely on regular manual inspections to turn over and air-dry the straw if mold and rot are found. Therefore, existing warehouses for collecting and storing straw raw materials cannot timely ventilate and dissipate heat from the inside of the straw during the fermentation process, resulting in mildew of the crop straw. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a straw raw material storage warehouse used in the biomass gasification process, which can be ventilated according to the changes in the temperature field in the warehouse to ensure that the straw does not mold.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The utility model provides a straw raw material storage warehouse for use in a biomass gasification process, comprising a warehouse body, a temperature sensor, a ventilation fan, a blower and a controller; the temperature sensor is arranged at multiple positions inside the warehouse body, the blower is arranged inside the warehouse body, the ventilation fan is arranged on the upper wall of the warehouse body, the output end of the temperature sensor is connected to the input end of the controller, and the control signal output end of the controller is respectively connected to the control ends of the ventilation fan and the blower;

[0008] A column is arranged in the middle of the warehouse body, and the top of the column is flush with the top of the wall of the warehouse body; a wire mesh is arranged around the column, and a wire mesh is arranged on the inner side of the wall of the warehouse body at least 5 cm away from the wall.

[0009] As a possible implementation of this embodiment, the temperature sensor includes a column temperature sensor and a side wall temperature sensor; four column temperature sensors are arranged on the column at equal intervals from top to bottom, and at least two side wall temperature sensors are arranged close to the wall on a horizontal plane inside the warehouse body where the three column temperature sensors below are located; a blower is arranged on the column at the location of the three column temperature sensors below, which blows air in the direction of the side wall temperature sensors on the same horizontal plane.

[0010] As a possible implementation of this embodiment, two side wall temperature sensors are symmetrically arranged on both sides of the column on the same horizontal plane.

[0011] As a possible implementation of this embodiment, 3-6 side wall temperature sensors are arranged around the column and at equal angles on the same horizontal plane.

[0012] As a possible implementation of this embodiment, the number of the blowers is the same as the number of the side wall temperature sensors.

[0013] As a possible implementation of this embodiment, there are at least two ventilation fans, which are arranged at the upper end of the wall of the upper part of the warehouse body.

[0014] As a possible implementation of this embodiment, the floor of the warehouse body is convex in the middle and concave on both sides, and the warehouse door is located at one end of the convex floor in the middle.

[0015] As a possible implementation of this embodiment, an extended cylinder cover is provided at the air outlet of the blower.

[0016] As a possible implementation of this embodiment, the temperature sensor adopts a platinum resistance sensor.

[0017] The technical solution of the embodiment of the utility model can have the following beneficial effects:

[0018] The utility model adds steel wire mesh around the built warehouse, treats the warehouse floor appropriately, adds temperature sensors and ventilation devices inside, and performs ventilation according to the changes in the sensor temperature field to ensure that the straw does not mold. The utility model has a high degree of intelligence, can achieve high energy saving, reduce equipment losses, and has extremely low cost and is easy to install and debug. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a straw raw material storage depot used in a biomass gasification process according to an exemplary embodiment;

[0020] Figure 2 is a left view of a straw raw material storage bin according to an exemplary embodiment;

[0021] Figure 3 is a schematic diagram of a ventilation fan installation structure according to an exemplary embodiment;

[0022] Figure 4 It is a principle block diagram of a controller according to an exemplary embodiment. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0024] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The present invention omits the description of known components and processing techniques and processes to avoid unnecessary limitations on the present invention.

[0025] like Figure 1 As shown, the embodiment of the utility model provides a straw raw material storage warehouse used in the biomass gasification process, including a warehouse body 1, a temperature sensor 2, a ventilation fan 3, a blower 4 and a controller; the temperature sensor 2 is arranged at multiple positions inside the warehouse body 1, the blower 4 is arranged inside the warehouse body 1, the ventilation fan 3 is arranged on the upper wall of the warehouse body 1, the output end of the temperature sensor is connected to the input end of the controller, and the control signal output end of the controller is respectively connected to the control end of the ventilation fan and the blower. Figure 2 As shown, a column is arranged in the middle of the warehouse body 1, and the top of the column is flush with the top of the wall 6 of the warehouse body; a wire mesh 7 is arranged around the column, which is not only convenient for the ventilation of the straw raw materials, but also includes the device on the column; a wire mesh 7 is arranged at least 5 cm away from the wall inside the wall of the warehouse body. The original warehouse is provided with a rolling door 1-1, and drainage grooves 1-2 are arranged around the warehouse. The utility model is modified on the basis of the original warehouse, and a wire mesh is installed inside the warehouse body and on three walls, in order to prevent the straw from contacting the wall surface, which is conducive to gas flow.

[0026] like Figure 1As shown, the temperature sensor 2 includes a column temperature sensor 2-1 and a side wall temperature sensor 2-2; four column temperature sensors are arranged on the column at equal intervals from top to bottom, and at least two side wall temperature sensors are arranged on a horizontal plane inside the warehouse body where the three column temperature sensors below are located, close to the wall; blowers are arranged on the columns at the three column temperature sensors below, blowing air in the direction of the side wall temperature sensors on the same horizontal plane, thereby increasing the circulation of gas inside the warehouse body.

[0027] A column is set in the middle of the warehouse body, and three pairs of left-right symmetrical blowers are equally installed at 75% below the column. Four temperature sensors are installed at the top of the column and the blower. Three corresponding pairs of temperature sensors are also installed on the left and right sides of the warehouse parallel to the three pairs of blowers.

[0028] like Figure 1 As shown, two side wall temperature sensors are symmetrically arranged on both sides of the column on the same horizontal plane.

[0029] As a possible implementation of this embodiment, 3-6 side wall temperature sensors are arranged around the column and at equal angles on the same horizontal plane.

[0030] like Figures 1 to 3 As shown, the number of the blowers is the same as the number of the side wall temperature sensors.

[0031] like Figure 3 As shown, in order to ensure better gas flow, there are at least two ventilation fans, which are arranged on the upper end of the wall of the upper part of the warehouse body.

[0032] like Figure 2 As shown, the inner floor 1-3 of the warehouse body is convex in the middle and concave on both sides, and the concave parts on both sides are higher than the outer floor 1-4 of the warehouse body. The warehouse door is at one end of the convex floor in the middle, which is conducive to the loss of moisture in the straw and also convenient for forklifts to enter and unload straw raw materials.

[0033] like Figure 1 As shown, an extended cylinder cover is provided at the air outlet of the blower to facilitate the diffusion of gas up, down and forward.

[0034] As a possible implementation of this embodiment, the temperature sensor adopts a platinum resistance sensor.

[0035] The controller of the utility model adopts STM8S single chip microcomputer. Figure 4As shown, the temperature sensor, ventilation fan and blower are connected to the STM8S microcontroller. The controller mainly includes: power supply, control core, value setting, LCD display, temperature field detection, blower start, ventilation fan start and alarm part. The controller has a network interface function and can communicate data with the host computer or background management platform. The blower control time and the upper and lower limit values ​​of the temperature sensor can be reasonably set according to the needs of the site. When an abnormal situation occurs, an alarm can be issued. Figure 1 As shown in the figure, 10 temperature sensors are installed in the warehouse body. The temperature sensor at the top of the middle column is used to measure the ambient temperature of the warehouse, and the other 9 sensors measure the temperature field of 6 parts at three levels. According to the difference between the temperature of the 6 parts and the ambient temperature, the operation of the 6 blowers is turned on. It can also be said that the difference between the 6 parts and the ambient temperature can be used to deduce the position and height of the straw material stacked in the warehouse, so that the number and time of the blowers at different positions can be controlled, and optimized control can be performed to achieve energy saving. Turn on the ventilation fan at the same time as the blower to increase the circulation of warehouse gas. The ventilation fan opening time depends on the overall temperature difference.

[0036] It should be noted that in the implementation process of the present invention, the STM8S single-chip microcomputer and its surrounding circuits and the control program settings in the STM8S single-chip microcomputer all adopt the existing technology to perform automatic ventilation according to the changes in the sensor temperature field. This is a conventional technical means for those skilled in the art, and the specific ventilation control process will not be described in detail here.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A straw raw material storage warehouse used in the process of biomass gasification, comprising a warehouse body, characterized in that: It also includes a temperature sensor, a ventilation fan, a blower and a controller; the temperature sensor is arranged at multiple positions inside the warehouse body, the blower is arranged inside the warehouse body, the ventilation fan is arranged on the upper wall of the warehouse body, the output end of the temperature sensor is connected to the input end of the controller, and the control signal output end of the controller is respectively connected to the control ends of the ventilation fan and the blower; A column is arranged in the middle of the warehouse body, and the top of the column is flush with the top of the wall of the warehouse body; a wire mesh is arranged around the column, and a wire mesh is arranged on the inner side of the wall of the warehouse body at least 5 cm away from the wall.

2. The straw raw material storage and collection depot used in the biomass gasification process according to claim 1 is characterized in that: The temperature sensors include column temperature sensors and side wall temperature sensors; four column temperature sensors are arranged on the column at equal intervals from top to bottom, and at least two side wall temperature sensors are arranged close to the wall on a horizontal plane inside the warehouse body where the three column temperature sensors are located below; a blower is arranged on the column at the location of the three column temperature sensors below, blowing air in the direction of the side wall temperature sensors on the same horizontal plane.

3. The straw raw material storage and collection depot used in the biomass gasification process according to claim 2 is characterized in that: Two side wall temperature sensors are symmetrically arranged on both sides of the column on the same horizontal plane.

4. The straw raw material storage and collection depot used in the biomass gasification process according to claim 2, characterized in that: 3-6 side wall temperature sensors are arranged around the column and at equal angles on the same horizontal plane.

5. The straw raw material storage and collection depot used in the biomass gasification process according to any one of claims 2 to 4, characterized in that: The number of the blowers is the same as the number of the side wall temperature sensors.

6. The straw raw material storage and collection depot used in the biomass gasification process according to claim 1 or 2, characterized in that: There are at least two ventilation fans, which are arranged on the upper end of the wall of the upper part of the warehouse body.

7. The straw raw material storage and collection depot used in the biomass gasification process according to claim 1 or 2, characterized in that: The floor of the warehouse body is convex in the middle and concave on both sides, and the warehouse door is located at one end of the convex floor in the middle.

8. The straw raw material storage and collection depot used in the biomass gasification process according to claim 1 or 2, characterized in that: An extension tube cover is arranged at the air outlet of the blower.

9. The straw raw material storage and collection depot used in the biomass gasification process according to claim 1 or 2, characterized in that: The temperature sensor is a platinum resistance sensor.

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