Raw charcoal pushing and cooling device

Abstract

The utility model discloses a raw charcoal pushing and cooling device which comprises an inert gas cooling box body communicated with the discharge end of carbonization equipment, a first gate valve arranged between the discharge end of the carbonization equipment and the inert gas cooling box body and used for controlling the discharge end of the carbonization equipment and the inert gas cooling box body to be connected and disconnected, and a charcoal discharge pipeline arranged in the inert gas cooling box body, the upper end of the carbon discharging pipeline is connected with the discharging end of the carbonization equipment, an opening is formed in the position, corresponding to the downstream end of the horizontal conveyor, of the inert gas cooling box body, a bridging channel is arranged at the opening, the upstream end of the bridging channel is connected with the downstream end of the horizontal conveyor, and the upstream end of the bridging channel is connected with the downstream end of the carbon discharging pipeline. The downstream end of the bridging channel is connected with the upstream end of a water jacket cooling conveyor, a second gate valve used for opening and closing the opening is arranged on the side, located outside the inert gas cooling box body, of the bridging channel, and the inert gas cooling box body is connected with low-temperature inert gas injection equipment. Through inert gas cooling and water cooling non-contact cooling, the cooling device has the advantages of energy conservation and environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of raw charcoal production technology, specifically to a raw charcoal pushing and cooling device. Background Technology

[0002] Raw wood charcoal is a high-calorific-value charcoal obtained by carbonizing waste fruit trees, branches, tree segments, oak, lychee wood, cedarwood, bamboo tubes, and bamboo joints at high temperatures. It is hard, durable, and burns for a long time, producing fewer pollutants during combustion. Industrial production typically uses horizontal carbonization furnaces. Because raw wood charcoal is made from solid wood, its volume is larger than some granular biochar, carrying more heat when it exits the furnace. To facilitate the transfer and storage of raw wood charcoal, it needs to undergo cooling treatment after exiting the furnace. Some existing biochar cooling and conveying equipment, such as the utility model patent with authorization announcement number CN 222781566 U, uses cold water spray pipes on the conveyor chain shell to achieve water cooling of the biochar. While the cooling and transport of biochar during the discharge process has been resolved, the sprayed water can also cause rust on the conveyor chain plates and inside the casing, reducing the service life of the conveying equipment. Furthermore, the lack of water recycling leads to significant water consumption. In particular, direct contact between water and the high-temperature biochar generates a large amount of high-temperature steam that permeates the workshop, posing a certain safety hazard. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this invention provides a material pushing and cooling device for raw charcoal.

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

[0005] A charcoal feeding and cooling device, connected to the discharge end of a carbonization equipment, is used to cool the finished charcoal fed into the carbonization equipment. The device is characterized by comprising an inert gas cooling chamber connected to the discharge end of the carbonization equipment, a first gate valve located between the discharge end of the carbonization equipment and the inert gas cooling chamber for controlling the on / off state of both, a charcoal discharge pipe located within the inert gas cooling chamber, and a horizontal conveyor connected to the lower outlet of the charcoal discharge pipe. The upper end of the charcoal discharge pipe is connected to the discharge end of the carbonization equipment. The inert gas cooling chamber has an opening at a position corresponding to the downstream end of the horizontal conveyor. A bridging channel is provided at the opening. The upstream end of the bridging channel is connected to the downstream end of the horizontal conveyor, and the downstream end of the bridging channel is connected to the upstream end of a water-jacketed cooling conveyor. A second gate valve is provided on one side of the bridging channel outside the inert gas cooling chamber for opening and closing the opening. The inert gas cooling chamber is connected to a low-temperature inert gas injection device.

[0006] Preferably, in the above-mentioned raw charcoal feeding and cooling device, the horizontal conveyor includes a frame and a first chain plate conveyor belt rotatably mounted on the frame. Baffles are respectively provided on the left and right sides of the first chain plate conveyor belt. A channel constraint plate is provided on the upper surface of the first chain plate conveyor belt at a position inside the baffles. Under the constraint of the channel constraint plate, the conveying channel formed on the upper surface of the first chain plate conveyor belt forms a wider dropping area at the upstream end and a narrower feeding area at the downstream end. The lower outlet of the charcoal outlet pipe is connected to the dropping area, and the feeding area is connected to the upstream end of the bridging channel.

[0007] Preferably, in the above-mentioned raw charcoal pushing and cooling device, the two ends of the frame are respectively provided with adjustable rods located on both sides of the first chain conveyor belt, and the two ends of the channel constraint plate are respectively fixedly connected to the adjustable rods at the corresponding positions.

[0008] Preferably, in the above-mentioned raw charcoal pushing and cooling device, a reduction motor is fixed at the end of the frame away from the charcoal outlet pipe, and the reduction motor is connected to the drive shaft of the first chain conveyor belt.

[0009] Preferably, in the above-mentioned raw charcoal feeding and cooling device, the bridging channel includes a horizontally arranged high-temperature resistant plate, and the left and right sides of the high-temperature resistant plate are formed with vertically upward second baffles. At the opening of the inert gas cooling box corresponding to the bridging channel, an assembly groove for installing the second gate valve is formed on the inner surface.

[0010] Preferably, in the above-mentioned raw charcoal feeding and cooling device, the second gate valve includes a U-shaped gate mounting seat and a second gate valve body disposed on the gate mounting seat. The frame of the gate mounting seat is installed in the assembly groove, and the upper surface of the bottom frame of the gate mounting seat is flush with the upper surface of the high-temperature plate at a horizontal plane.

[0011] Preferably, in the above-mentioned raw charcoal pushing and cooling device, the water jacket cooling conveyor includes a chain plate conveyor line and a cold water jacket box sleeved on the chain plate conveyor line. The cold water jacket box is connected to a cold water circulation pump group. The upstream end of the chain plate conveyor line is provided with a docking part that connects with the downstream end of the bridging channel. The downstream end of the chain plate conveyor line is provided with a drive motor.

[0012] Preferably, in the above-mentioned raw charcoal feeding and cooling device, the cold water jacket is formed with spatially independent heat exchange chambers, upper cold water chambers and lower cold water chambers, at least 85% of the chain conveyor line passes through the heat exchange chambers, and the upper cold water chambers and the lower cold water chambers are respectively connected to the cold water circulation pump group.

[0013] Preferably, in the above-mentioned raw charcoal feeding and cooling device, the chain plate conveyor line includes a conveyor frame and a second chain plate conveyor belt rotatably sleeved on the conveyor frame. The left and right sides of the second chain plate conveyor belt are respectively provided with heat-conducting baffles. The upper end of the heat-conducting baffle is bent inward horizontally and integrally formed with heat exchange plates. The heat exchange plates are located at the top of the heat exchange chamber and are tightly connected to the bottom of the upper cold water chamber.

[0014] The beneficial effects of this utility model are as follows: This utility model can use an inert gas cooling box to spray low-temperature nitrogen gas onto the high-temperature raw charcoal that has just been pushed out of the carbonization equipment, thereby achieving rapid cooling of the high-temperature raw charcoal to about 300°C. Then, the rapidly cooled raw charcoal is cooled by a water jacket cooling conveyor in a non-contact water cooling manner, which will not cause water waste or the generation of high-temperature water vapor. At the same time, the waste heat can be recovered and reused. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention;

[0016] Figure 2 This is a top view of the horizontal conveyor described in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second gate valve and the bridging channel of this utility model;

[0018] Figure 4 For the bridging channel in Figure 3 Cross-sectional view at point "AA" in the middle;

[0019] Figure 5 This is a structural diagram of the water jacket cooling conveyor described in this utility model;

[0020] Figure 6 This is a side view of the water jacket cooling conveyor described in this utility model;

[0021] Figure 7 This is a cross-sectional view of the cold water jacket described in this utility model. Detailed Implementation

[0022] To provide a further understanding of this utility model, the following description, with reference to the accompanying drawings and specific embodiments, will further illustrate the utility model:

[0023] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Please see Figure 1 As shown in the figure, this embodiment of the present invention proposes a material pushing and cooling device for raw charcoal. This device is connected to the discharge end of the carbonization equipment 100 and is used to cool the finished charcoal material pushed from the carbonization equipment 100. Specifically, the material pushing and cooling device includes an inert gas cooling box 1, a first gate valve 2, a charcoal outlet pipe 3, a horizontal conveyor 4, a bridging channel 5, a second gate valve 6, and a water-jacketed cooling conveyor 7. The inert gas cooling box 1 is connected to a low-temperature inert gas injection device. The inert gas cooling box 1 is connected to the discharge end of the carbonization equipment 100. The upper end of the charcoal outlet pipe 3 is connected to the discharge end of the carbonization equipment 100. The first gate valve 2 is located between the discharge end of the carbonization equipment 100 and the inert gas cooling box 1 to control the connection between the two. When the first gate valve 2 is open, the raw charcoal in the carbonization equipment 100 is pushed into the charcoal outlet pipe 3 through its discharge end. Specifically, as shown... Figure 1 As shown, the charcoal outlet pipe 3 and the horizontal conveyor 4 are located in the inert gas cooling box 1. The lower end outlet of the charcoal outlet pipe 3 is connected to the horizontal conveyor 4 to deliver the high-temperature raw charcoal pushed out by the carbonization equipment 100 to the horizontal conveyor 4.

[0026] like Figure 1As shown, the inert gas cooling chamber 1 has an opening at the downstream end of the horizontal conveyor 4, and a bridging channel 5 is provided at this opening. The upstream end of the bridging channel 5 connects to the downstream end of the horizontal conveyor 4, and the downstream end of the bridging channel 5 connects to the upstream end of the water-jacketed cooling conveyor 7. A second gate valve 6 is located on the side of the bridging channel 5 outside the inert gas cooling chamber 1, and this second gate valve 6 is used to open and close the opening of the inert gas cooling chamber 1 at this location. When the carbonization equipment 100 discharges material, the corresponding mechanism operates as follows: the first gate valve 2 is open, the second gate valve 6 is closed, the horizontal conveyor 4 is running, and the low-temperature inert gas blowing equipment connected to the inert gas cooling chamber 1 is not working. At this time, the high-temperature raw charcoal pushed out from the discharge end of the carbonization equipment 100 enters the charcoal discharge pipe 3 through the opened first gate valve 2, and then enters the horizontal conveyor 4 for temporary storage until the discharge of high-temperature raw charcoal for one stage is completed. The horizontal conveyor 4 then stops operating, the first gate valve 2 changes from open to closed, and the second gate valve 6 remains closed. At this time, the inert gas cooling box 1 is sealed. Then, the low-temperature inert gas blowing equipment starts working, blowing low-temperature inert gas onto the temporarily stored high-temperature raw charcoal on the horizontal conveyor 4, rapidly cooling the high-temperature raw charcoal. Then, the second gate valve 6 opens, the horizontal conveyor 4 resumes operation, and the water jacket cooling conveyor 7 also starts. The rapidly cooled raw charcoal passes through the opened second gate valve 6 and enters the water jacket cooling conveyor 7 through the bridging channel 5 for further water cooling. Waste heat is recovered and utilized during the water cooling process, and the cooled water from the heat exchange can be recycled. To prevent excessive air pressure within the inert gas cooling chamber 1 and the leakage of inert gas, the chamber 1 is equipped with an air pressure sensor and an inert gas return pipeline. During the inert gas cooling process, if excessive air pressure is detected within the chamber 1, the inert gas can be discharged through the inert gas return pipeline. After the inert gas cooling process is complete, the inert gas inside the chamber can be extracted through the inert gas return pipeline to prevent the leakage of inert gas after the second gate valve 6 is opened.

[0027] Furthermore, in a preferred embodiment of this utility model, such as Figure 2 As shown, the horizontal conveyor 4 includes a frame 41 and a first chain conveyor belt 42 rotatably mounted on the frame 41. Baffles 43 are respectively provided on the left and right sides of the first chain conveyor belt 42, and a channel constraint plate 45 is provided on the upper surface of the first chain conveyor belt 42 at a position inside the baffles 43. Under the constraint of the channel constraint plate 45, the conveying channel formed on the upper surface of the first chain conveyor belt 42 forms a wider upstream material drop area 421 and a narrower downstream feeding area 422. The lower outlet of the carbon outlet pipe 3 connects to the material drop area 421, and the feeding area 422 connects to the upstream end of the bridging channel 5. To facilitate adjustment of the opening size of the feeding area 422, such as... Figure 2As shown, adjustable rods 44 are provided at both ends of the frame 41 on both sides of the first chain conveyor belt 42, and the two ends of the channel constraint plate 45 are fixedly connected to the corresponding adjustable rods 44. Figure 2 As shown, a geared motor 46 is fixed at the end of the frame 41 away from the carbon outlet pipe 3. The geared motor 46 is connected to the drive shaft of the first chain conveyor belt 42.

[0028] Furthermore, in a preferred embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the bridging channel 5 includes a horizontally arranged high-temperature resistant plate 51, with vertically upward-facing second baffles 52 formed on both sides of the high-temperature resistant plate 51. Specifically, at the opening corresponding to the inert gas cooling chamber 1, the bridging channel 5 has an assembly groove 53 formed on its inner surface for installing the second gate valve 6. Figure 2 As shown, the second gate valve 6 includes a U-shaped gate mounting base 62 and a second gate valve body 61 mounted on the gate mounting base 62. The frame of the gate mounting base 62 is installed in the assembly groove 53, and the upper surface of the bottom frame 621 of the gate mounting base 62 is flush with the upper surface of the high-temperature resistant plate 51 at a horizontal plane. In the embodiment of this utility model, in order to ensure that the second gate valve 6 forms a seal against the opening of the inert gas cooling box 1 when closed, the top frame of the gate mounting base 62 is sealed and fitted against the outer wall of the inert gas cooling box 1.

[0029] Furthermore, in a preferred embodiment of this utility model, such as Figure 5 , Figure 6 and Figure 7 As shown, the water jacket cooling conveyor 7 includes a chain conveyor line 71 and a cold water jacket 72 sleeved on the chain conveyor line 71. A drive motor 74 is located at the downstream end of the chain conveyor line 71. The cold water jacket 72 is connected to a cold water circulation pump set, which circulates cold water into the cold water jacket 72, providing a cooling medium. Figure 5 As shown, the upstream end of the chain conveyor line 71 is provided with a docking part 73 that connects to the downstream end of the bridging channel 5. The docking part 73 is connected to the downstream end of the high-temperature plate 51. The second baffle 52 at the downstream end of the high-temperature plate 51 serves as a side baffle for the docking part 73, and the feeding area 422 is connected to the upstream end of the high-temperature plate 51.

[0030] Furthermore, in a preferred embodiment of this utility model, such as Figure 6 and Figure 7As shown, the cold water jacket 72 has three spatially independent heat exchange chambers 721, an upper cold water chamber 722, and a lower cold water chamber 723. At least 85% of the chain conveyor line 71 passes through the heat exchange chamber 721. The upper cold water chamber 722 and the lower cold water chamber 723 are respectively connected to the cold water circulation pump unit. The chain conveyor line 71 includes a conveyor frame 711 and a second chain conveyor belt 712 rotatably mounted on the conveyor frame 711. The second chain conveyor belt 712 is provided with heat-conducting baffles 713 on both the left and right sides. The upper end of the heat-conducting baffle 713 is bent inward horizontally and integrally formed with heat exchange plates 7131. The heat exchange plates 7131 are located at the top of the heat exchange chamber 721 and are closely connected to the bottom of the upper cooling water chamber 722. Through the heat-conducting baffles 713 and the heat exchange plates 7131, the raw charcoal on the chain conveyor 71 can be cooled more efficiently. The entire water cooling process does not come into direct contact with the raw charcoal and will not generate high-temperature water vapor. At the same time, the waste heat can be recovered and utilized.

[0031] Specifically, such as Figure 1 As shown, the low-temperature inert gas blowing device has an inert gas blowing pipe 8 arranged inside the inert gas cooling box 1. The inert gas blowing pipe 8 is located above the horizontal conveyor 4 and can rapidly cool the high-temperature charcoal on the horizontal conveyor 4 using low-temperature inert gas. In a preferred embodiment of this utility model, the low-temperature inert gas blowing device uses low-temperature nitrogen.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A raw charcoal feeding and cooling device, connected to the discharge end of a carbonization device (100), used to cool the finished charcoal feed from the carbonization device (100), characterized in that, The system includes an inert gas cooling box (1) connected to the discharge end of the carbonization equipment (100), a first gate valve (2) located between the discharge end of the carbonization equipment (100) and the inert gas cooling box (1) for controlling the on / off state of both, a carbon discharge pipe (3) located in the inert gas cooling box (1), and a horizontal conveyor (4) connected to the lower outlet of the carbon discharge pipe (3). The upper end of the carbon discharge pipe (3) is connected to the discharge end of the carbonization equipment (100), and the inert gas cooling box (1) is connected to the discharge end of the carbonization equipment (100). An opening is provided at the downstream end of the horizontal conveyor (4), and a bridging channel (5) is provided at the opening. The upstream end of the bridging channel (5) is connected to the downstream end of the horizontal conveyor (4), and the downstream end of the bridging channel (5) is connected to the upstream end of a water jacket cooling conveyor (7). On the side of the bridging channel (5) located outside the inert gas cooling box (1), a second gate valve (6) for opening and closing the opening is provided. The inert gas cooling box (1) is connected to a low-temperature inert gas blowing device.

2. The raw charcoal feeding and cooling device according to claim 1, characterized in that, The horizontal conveyor (4) includes a frame (41) and a first chain plate conveyor belt (42) rotatably mounted on the frame (41). Baffles (43) are provided on the left and right sides of the first chain plate conveyor belt (42). A channel constraint plate (45) is provided on the upper surface of the first chain plate conveyor belt (42) at the position inside the baffle (43). Under the constraint of the channel constraint plate (45), the conveying channel formed on the upper surface of the first chain plate conveyor belt (42) has a wider upstream material drop area (421) and a narrower downstream material feeding area (422). The lower end outlet of the carbon outlet pipe (3) is connected to the material drop area (421), and the material feeding area (422) is connected to the upstream end of the bridging channel (5).

3. The raw charcoal feeding and cooling device according to claim 2, characterized in that, The frame (41) has adjustable rods (44) at both ends located on both sides of the first chain conveyor belt (42), and the two ends of the channel constraint plate (45) are fixedly connected to the adjustable rods (44) at the corresponding positions.

4. The raw charcoal feeding and cooling device according to claim 2, characterized in that, The frame (41) has a geared motor (46) fixed at one end away from the carbon outlet pipe (3), and the geared motor (46) is connected to the drive shaft of the first chain conveyor belt (42).

5. The raw charcoal feeding and cooling device according to claim 1, characterized in that, The bridging channel (5) includes a horizontally arranged high-temperature plate (51), and the high-temperature plate (51) has vertically upward second baffles (52) formed on the left and right sides. At the opening corresponding to the inert gas cooling box (1), the bridging channel (5) has an assembly groove (53) formed on its inner surface for installing the second gate valve (6).

6. The raw charcoal feeding and cooling device according to claim 5, characterized in that, The second gate valve (6) includes a U-shaped gate mounting seat (62) and a second gate valve body (61) disposed on the gate mounting seat (62). The frame of the gate mounting seat (62) is installed in the assembly groove (53). The upper surface of the bottom frame of the gate mounting seat (62) is flush with the upper surface of the high temperature plate (51) on a horizontal plane.

7. The raw charcoal feeding and cooling device according to claim 1, characterized in that, The water jacket cooling conveyor (7) includes a chain plate conveyor line (71) and a cold water jacket (72) sleeved on the chain plate conveyor line (71). The cold water jacket (72) is connected to a cold water circulation pump group. The upstream end of the chain plate conveyor line (71) is provided with a docking part (73) that connects to the downstream end of the bridging channel (5). The downstream end of the chain plate conveyor line (71) is provided with a drive motor (74).

8. The raw charcoal feeding and cooling device according to claim 7, characterized in that, The cold water jacket (72) has spatially independent heat exchange chambers (721), upper cold water chamber (722) and lower cold water chamber (723) inside. At least 85% of the chain conveyor line (71) passes through the heat exchange chamber (721). The upper cold water chamber (722) and the lower cold water chamber (723) are respectively connected to the cold water circulation pump group.

9. The raw charcoal feeding and cooling device according to claim 8, characterized in that, The chain conveyor line (71) includes a conveyor frame (711) and a second chain conveyor belt (712) rotatably sleeved on the conveyor frame (711). The left and right sides of the second chain conveyor belt (712) are respectively provided with heat-conducting baffles (713). The upper end of the heat-conducting baffle (713) is bent inward horizontally and integrally formed with heat exchange plates (7131). The heat exchange plates (7131) are located at the top of the heat exchange chamber (721) and are closely connected to the bottom of the upper cold water chamber (722).

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