Biomass material conveying device with chain plate tensioning function

Abstract

The biomass material conveying device comprises a chain plate box penetrating through a high-temperature carbonization chamber, the middle section of the chain plate box is located in the high-temperature carbonization chamber, the chain plate box is composed of an upper chain plate box body and a lower chain plate box body, the upper chain plate box body and the lower chain plate box body are arranged in an up-down parallel mode, and the two ends of the upper chain plate box body and the two ends of the lower chain plate box body are combined. Box chambers of the feeding and discharging box body, the upper chain plate box body, the chain plate tensioning box body and the lower chain plate box body form a communicated closed loop to form a material rotation channel, a closed-loop conveying chain plate is arranged in the material rotation channel, and a driving chain wheel pair with a fixed position is arranged at the end of the feeding and discharging box body. A driven chain wheel pair capable of moving and being adjusted in the chain plate conveying direction is arranged in the chain plate tensioning box body, and a heavy hammer tensioning mechanism is connected to the driven chain wheel pair. According to the utility model, stage-type layered carbonization treatment can be carried out on biomass materials in the conveying process, and the problem that a closed-loop conveying chain plate is loosened after being heated in the high-temperature carbonization process is solved.

Description

Technical Field

[0001] The utility model relates to the field of biomass carbonization equipment, in particular to a biomass material conveying device with chain plate tensioning. Background Art

[0002] Agricultural and forestry solid waste refers to the straw, chaff, shrub branches, dead leaves, wood bark, sawdust, wood shavings, and fruit residues discharged from the food processing industry generated during the growth, harvesting and processing of agricultural and forestry crops. At present, the more common treatment methods for agricultural and forestry solid waste can be divided into: landfill, incineration, papermaking, feed, press plate, biomass pellets, biomass power generation, etc. The above treatments have low utilization rates and high pollution, and have gradually been replaced by new technologies. In order to improve the efficiency of carbonization treatment of agricultural and forestry solid waste biomass, thermal cracking and carbonization methods have gradually been used to treat biomass materials. During the pyrolysis and carbonization process, the internal temperature of the equipment is maintained at about 1000 degrees. The biomass materials are in an oxygen-deficient state inside the equipment, and the carbonization and utilization of biomass materials are realized through the steps of preliminary cracking, complete cracking, preliminary carbonization, and complete carbonization. In the existing biomass carbonization and gasification equipment, the transportation of materials in the carbonization equipment mainly relies on a spiral auger. The main disadvantage is that the auger blades have an extrusion effect, which leads to high requirements on the particle size and fiber length of the transported biomass materials, and it is easy to deform when working for a long time in a high-temperature environment. Since the gap between the spiral blade and the pipe wall is relatively small, the material will expand due to external heating during the transportation process, which increases the friction between the blade and the pipe, causing the spiral blade to break. In order to solve the problem of the spiral auger working in a high-temperature carbonization environment, some carbonization equipment also uses chain plates to transport biomass materials. Although chain plate transportation avoids the extrusion problem caused by thermal deformation, the chain plate will work in a high-temperature carbonization environment for a long time, and the thermal relaxation of the chain plate will also reduce the material transmission efficiency. Utility Model Content

[0003] In order to solve the defects of the above-mentioned technology, the utility model provides a biomass material conveying device with chain plate tensioning.

[0004] The technical solution adopted by the utility model to achieve the above technical effects is:

[0005] A biomass material conveying device with chain plate tensioning, comprising a chain plate passing through a high-temperature carbonization chamber

[0006] The box comprises a middle section of the chain plate box, wherein the middle section of the chain plate box is located in the high-temperature carbonization chamber, and is composed of an upper chain plate box body and a lower chain plate box body which are arranged in parallel up and down, and the two ends of the upper chain plate box body and the lower chain plate box body are merged to form an inlet and outlet box body and a chain plate tensioning box body, and the box chambers of the inlet and outlet box body, the upper chain plate box body, the chain plate tensioning box body and the lower chain plate box body form a connected closed loop, forming a material rotation channel, and a closed-loop conveying chain plate is provided in the material rotation channel, and a fixed driving sprocket pair is provided at the end of the inlet and outlet box body, and a driven sprocket pair which can be moved and adjusted along the chain plate transmission direction is provided in the chain plate tensioning box body, and the two ends of the closed-loop conveying chain plate are respectively sleeved on the driving sprocket pair and the driven sprocket pair, and a heavy hammer tensioning mechanism is connected to the driven sprocket pair.

[0007] Preferably, in the above-mentioned biomass material conveying device with chain tensioning, the weight tensioning mechanism includes a chain tensioning weight, two weight wheels and two flexible connecting members, and the end side walls of the chain tensioning box body extend backward with left-right symmetrical wheel frames, and the two ends of the sprocket shaft of the driven sprocket pair are rotatably connected to traction wheels respectively, and the weight wheel is rotatably provided on the wheel frame, one end of the flexible connecting member is fixedly connected to the traction wheel, and the other end is led out through the weight wheel and connected to the chain tensioning weight.

[0008] Preferably, in the above-mentioned biomass material conveying device with chain tensioning, the chain tensioning weight is a square-shaped weight, the flexible connecting members on both sides are respectively connected to the two ends of the chain tensioning weight, and the two weight wheels can rotate independently of each other.

[0009] Preferably, in the above-mentioned biomass material conveying device with chain tensioning, the chain tensioning hammer is a square-shaped hammer, the flexible connecting members on both sides are respectively connected to the two ends of the chain tensioning hammer, and a synchronous rotating shaft is connected between the two hammer wheels.

[0010] Preferably, in the above-mentioned biomass material conveying device with chain plate tensioning, the inlet and outlet box is provided with an adjustable speed motor transmission-connected thereto at a position corresponding to the driving sprocket pair, the upper part of the inlet and outlet box is provided with a feed port connected to an external feeding device, and the lower part is provided with a charcoal outlet.

[0011] Preferably, in the above-mentioned biomass material conveying device with chain plate tensioning, multiple rows of descending cracking gas ducts are provided on both sides of the upper chain plate box along its length direction, the upper end pipe opening of the descending cracking gas duct is fixed on the upper surface of the upper chain plate box and is connected to the box chamber of the upper chain plate box, the lower end of the descending cracking gas duct extends downward and bends toward the bottom of the lower chain plate box, and the end is open.

[0012] Preferably, in the above-mentioned biomass material conveying device with chain plate tensioning, a plurality of cracking gas release pipes communicating with the box chamber are provided at the upper portion of the upper chain plate box along its length direction.

[0013] Preferably, in the above-mentioned biomass material conveying device with chain plate tensioning, the upper part of the lower chain plate box body is provided with a plurality of ascending cracking gas ducts connected with its box chamber along its length direction, and the upper part of the ascending cracking gas duct is open and faces the bottom of the upper chain plate box body.

[0014] The beneficial effects of the utility model are as follows: the biomass material conveying device of the utility model can perform staged layered carbonization treatment on the biomass material in the conveying process through the upper chain plate box and the lower chain plate box arranged in parallel in the high-temperature carbonization chamber, and the closed-loop conveying chain plate can be tensioned and adjusted through the heavy hammer tensioning mechanism, so that the closed-loop conveying chain plate is always in a tensioned state, which solves the problem of the closed-loop conveying chain plate being relaxed due to heat during the high-temperature carbonization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the present invention from one viewing angle;

[0016] Figure 2 It is a side plan view of the utility model;

[0017] Figure 3 A three-dimensional diagram of another viewing angle of the present invention;

[0018] Figure 4 It is the internal structure diagram of the utility model;

[0019] Figure 5 This is a structural diagram of a heavy hammer tensioning mechanism according to an embodiment of the utility model;

[0020] Figure 6 This is a structural diagram of a weight tensioning mechanism according to another embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to further understand the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0022] In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figures 1 to 4 As shown in the figure, the embodiment of the utility model proposes a chain plate

[0025] The tensioned biomass material conveying device comprises a chain plate box passing through a high-temperature carbonization chamber, wherein the middle section of the chain plate box is located in the high-temperature carbonization chamber, and is composed of an upper chain plate box body 1 and a lower chain plate box body 2 arranged in parallel from top to bottom, and the two ends of the upper chain plate box body 1 and the lower chain plate box body 2 are combined to form a material inlet and outlet box body 3 and a chain plate tensioning box body 4. Figure 4 As shown, the box chambers of the inlet and outlet box 3, the upper chain plate box 1, the chain plate tensioning box 4 and the lower chain plate box 2 form a connected closed loop, constituting a material rotation channel. The biomass material is sent into the material rotation channel of the chain plate box through the inlet and outlet box 3, and first passes through the upper chain plate box 1 for heat evaporation of moisture and preliminary cracking. As the material is conveyed, the cracking gas generated by the material in the upper chain plate box 1 gradually increases, and falls into the chain plate tensioning box 4 at the end, and then is sent to the lower chain plate box 2 by the chain plate tensioning box 4. During the conveying process in the lower chain plate box 2, the biomass material is further cracked and finally carbonized, and the carbonized product produced is finally output through the end of the lower chain plate box 2. The biomass material is carbonized in stages in the upper chain plate box 1 and the lower chain plate box 2. As shown Figure 4 As shown, in order to realize closed-loop conveying of biomass materials in the inlet and outlet box 3, the upper chain plate box 1, the chain plate tensioning box 4 and the lower chain plate box 2, a closed-loop conveying chain plate 5 is provided in the material rotation channel. Figure 4As shown, the end of the inlet and outlet box 3 is provided with a fixed driving sprocket pair 51, and the chain plate tensioning box 4 is provided with a driven sprocket pair 52 that can be moved and adjusted along the chain plate transmission direction, wherein the two ends of the closed-loop conveying chain plate 5 are respectively sleeved on the driving sprocket pair 51 and the driven sprocket pair 52, and the driving action of the driving sprocket pair 51 drives the entire closed-loop conveying chain plate 5 to realize the rotary conveying of materials. In order to avoid the thermal relaxation of the closed-loop conveying chain plate 5 caused by the high temperature environment, the driven sprocket pair 52 is connected with a weight tensioning mechanism. When the closed-loop conveying chain plate 5 is thermally relaxed, the weight tensioning mechanism drives the driven sprocket pair 52 to move away from the driving sprocket pair 51 under the action of gravity, thereby tightening the entire closed-loop conveying chain plate 5, so that the closed-loop conveying chain plate 5 is restored to a tensioned state, and the conveying efficiency is avoided to be reduced due to the thermal relaxation of the closed-loop conveying chain plate 5.

[0026] Further, in a preferred embodiment of the present invention, Figure 1 As shown, the weight tensioning mechanism includes a chain plate tensioning weight 9, two weight wheels 7 and two flexible connectors 8. Among them, the two side walls of the end of the chain plate tensioning box 4 extend backward with a left-right symmetrical wheel frame 6, the two ends of the sprocket shaft of the driven sprocket pair 52 are rotatably connected to the traction wheel 521, the weight wheel 7 is rotatably arranged on the wheel frame 6, one end of the flexible connector 8 is fixedly connected to the traction wheel 521, and the other end is led out through the weight wheel 7 and connected to the chain plate tensioning weight 9. When the closed-loop conveying chain plate 5 is relaxed due to heat, the chain plate tensioning weight 9 descends, and the traction wheel 521 is pulled away from the driving sprocket pair 51 through the flexible connector 8, so that the entire closed-loop conveying chain plate 5 is tightened. It should be noted that in the embodiment of the utility model, the traction wheel 521 itself and the sprocket shaft of the driven sprocket pair 52 are relatively rotatable, that is, the sprocket shaft of the driven sprocket pair 52 will not drive the traction wheel 521 to rotate when rotating. As an exemplary illustration, the flexible connector 8 may be a steel rope or a steel chain.

[0027] like Figure 5 As shown, as a preferred embodiment of the utility model, the chain plate tensioning hammer 9 is a square-shaped hammer, wherein the flexible connecting parts 8 on both sides are respectively connected to the two ends of the chain plate tensioning hammer 9, and a synchronous rotating shaft 71 is connected between the two hammer wheels 7.

[0028] like Figure 6 As shown, as a preferred embodiment of the utility model, the chain plate tensioning hammer 9 is a square-shaped hammer, wherein the flexible connecting parts 8 on both sides are respectively connected to the two ends of the chain plate tensioning hammer 9, and the two hammer wheels 7 can rotate independently of each other.

[0029] Further, in a preferred embodiment of the present invention, Figure 2As shown, the inlet and outlet box 3 is provided with an adjustable speed motor 511 in transmission connection with the driving sprocket pair 51 at the position corresponding to the driving sprocket pair 51, and the upper part of the inlet and outlet box 3 is provided with a feed port 31 connected to the external feeding equipment, and the lower part is provided with a carbon outlet 32. The adjustable speed motor 511 can drive the closed-loop conveying chain plate 5 to rotate at a variable speed according to the needs of carbonization work, and the biomass material enters the layer plate of the inlet and outlet box 3 through the feed port 31, and is driven to enter the upper chain plate box 1 through the upper chain plate of the closed-loop conveying chain plate 5, and then enters the chain plate tensioning box 4 through the upper chain plate box 1, and then enters the lower chain plate box 2 through the lower chain plate of the closed-loop conveying chain plate 5, and finally enters the lower part of the inlet and outlet box 3 through the end of the lower chain plate box 2, and the carbonized product is output to the outside through the carbon outlet 32 ​​at the lower part of the inlet and outlet box 3.

[0030] Further, in a preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, multiple rows of descending cracking gas conduits 11 are provided on both sides of the upper chain plate box 1 along its length direction, wherein the upper end pipe opening of the descending cracking gas conduit 11 is fixed on the upper surface of the upper chain plate box 1 and communicated with the box chamber of the upper chain plate box 1, and the lower end of the descending cracking gas conduit 11 extends downward and bends toward the bottom of the lower chain plate box 2, and the end is in an open shape. The descending cracking gas conduit 11 is used to guide the cracking gas generated in the upper chain plate box 1 to the high-temperature carbonization chamber for combustion, and is guided to the bottom of the lower chain plate box 2 through its lower end, so that the cracking gas can be burned at the bottom position of the lower chain plate box 2, heat the lower chain plate box 2, and further promote the carbonization of the biomass material in the lower chain plate box 2. The upper part of the upper chain plate box 1 is provided with multiple cracking gas release pipes 12 connected to its box chamber along its length direction, and the cracking gas release pipe 12 is provided with a switch quantity controller, and the opening size of the cracking gas release pipe 12 can be controlled by the switch quantity controller. The cracked gas in the upper chain plate box 1 can be released to the high-temperature gasification chamber connected thereto through the cracked gas release pipe 12, thereby increasing the heat energy for the high-temperature gasification chamber and realizing effective recovery and utilization of the cracked gas. The upper part of the lower chain plate box 2 is provided with a plurality of ascending cracked gas conduits 21 connected to the chamber along its length direction, and the upper end of the ascending cracked gas conduit 21 is open. The cracked gas generated in the lower chain plate box 2 can be led out to the bottom of the upper chain plate box 1 through the ascending cracked gas conduit 21, so that the led cracked gas is burned at the bottom of the upper chain plate box 1, providing heat energy for the biomass material in the upper chain plate box 1, and further realizing effective recovery and utilization of the cracked gas.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A biomass material conveying device with chain plate tensioning, comprising a chain plate box passing through a high-temperature carbonization chamber, characterized in that: The middle section of the chain plate box is located in the high-temperature carbonization chamber, and is composed of an upper chain plate box body (1) and a lower chain plate box body (2) arranged in parallel up and down. The two ends of the upper chain plate box body (1) and the lower chain plate box body (2) are combined to form an inlet and outlet box body (3) and a chain plate tensioning box body (4). The inlet and outlet box body (3), the upper chain plate box body (1), the chain plate tensioning box body (4) and the box chamber of the lower chain plate box body (2) form a connected closed loop, forming a material rotation channel. A closed-loop conveying chain plate (5) is provided in the material rotation channel, a fixed driving sprocket pair (51) is provided at the end of the inlet and outlet box (3), a driven sprocket pair (52) movable and adjustable along the chain plate transmission direction is provided in the chain plate tensioning box (4), two ends of the closed-loop conveying chain plate (5) are respectively sleeved on the driving sprocket pair (51) and the driven sprocket pair (52), and a heavy hammer tensioning mechanism is connected to the driven sprocket pair (52).

2. The biomass material conveying device with chain plate tensioning according to claim 1, characterized in that: The weight tensioning mechanism comprises a chain plate tensioning weight (9), two weight wheels (7) and two flexible connecting members (8); a left-right symmetrical wheel frame (6) is extended backward from the two side walls at the end of the chain plate tensioning box (4); two ends of the sprocket shaft of the driven sprocket pair (52) are rotatably connected to traction wheels (521), the weight wheel (7) is rotatably arranged on the wheel frame (6); one end of the flexible connecting member (8) is fixedly connected to the traction wheel (521), and the other end is led out through the weight wheel (7) and connected to the chain plate tensioning weight (9).

3. The biomass material conveying device with chain plate tensioning according to claim 2, characterized in that: The chain plate tensioning hammer (9) is a square-shaped hammer, and the flexible connecting members (8) on both sides are respectively connected to the two ends of the chain plate tensioning hammer (9), and the two hammer wheels (7) can rotate independently of each other.

4. The biomass material conveying device with chain plate tensioning according to claim 2, characterized in that: The chain plate tensioning weight (9) is a square block-shaped weight, the flexible connecting members (8) on both sides are respectively connected to the two ends of the chain plate tensioning weight (9), and a synchronous rotating shaft (71) is connected between the two weight wheels (7).

5. The biomass material conveying device with chain plate tensioning according to claim 1, characterized in that: The inlet and outlet box (3) is provided with an adjustable speed motor (511) in transmission connection with the driving sprocket pair (51) at a position corresponding to the driving sprocket pair (51), and the upper part of the inlet and outlet box (3) is provided with a feed port (31) connected to an external feeding device, and the lower part is provided with a charcoal outlet (32).

6. The biomass material conveying device with chain plate tensioning according to claim 1, characterized in that: A plurality of rows of descending cracking gas ducts (11) are provided on both sides of the upper chain plate box (1) along its length direction; the upper end openings of the descending cracking gas ducts (11) are fixed to the upper surface of the upper chain plate box (1) and communicate with the box chamber of the upper chain plate box (1); the lower ends of the descending cracking gas ducts (11) extend downward and bend toward the bottom of the lower chain plate box (2), with the ends being open.

7. The biomass material conveying device with chain plate tensioning according to claim 1, characterized in that: The upper portion of the upper chain plate box (1) is provided with a plurality of cracked gas release pipes (12) along its length direction and connected to the box chamber.

8. The biomass material conveying device with chain plate tensioning according to claim 1, characterized in that: The upper portion of the lower chain plate box (2) is provided with a plurality of ascending cracking gas conduits (21) in communication with the box chamber along its length direction, and the upper portion of the ascending cracking gas conduits (21) is open and faces the bottom of the upper chain plate box (1).

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