Auger conveying heat preservation device

Abstract

The utility model discloses an auger conveying heat preservation device which comprises an auger conveying charging barrel body, and the axis of the auger conveying charging barrel body is arranged in the longitudinal direction. The packing auger conveying charging barrel has the advantages that the heat preservation outer cover and the heat preservation lining on the two sides can be detachably fixed to the two sides of the periphery of the packing auger conveying charging barrel body respectively in the mode that the inserting blocks are in transverse sliding fit with the inserting grooves, and the limiting rods are in vertical sliding fit with the limiting holes; the combination mode of the heat preservation outer cover, the heat preservation lining and the auger conveying charging barrel body is simple and easy to operate, and then external heat preservation is conveniently conducted on the auger conveying charging barrel body in the mode that the heat preservation outer cover and the heat preservation lining on the two sides are folded to surround the periphery of the auger conveying charging barrel body. The condition that the temperature of the gypsum material is reduced in the conveying process is favorably prevented, and the conditions that the strength of the alpha-type semi-hydrated high-strength gypsum crystal is reduced and the crystal is reduced are avoided.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary components for alpha high-strength gypsum production, in particular to a Jiaolong conveying and heat-insulating device. Background Art

[0002] Industrial by-product gypsum refers to the by-product or waste residue with calcium sulfate as the main component generated by chemical reactions in industrial production, also known as chemical gypsum or industrial waste gypsum. Using industrial waste gypsum as raw material to prepare α high-strength gypsum is an emerging industrial waste gypsum utilization technology, which can effectively solve the problem of industrial by-product gypsum storage. In the process of preparing α high-strength gypsum with industrial waste gypsum as raw material, the main process principle is: industrial by-product gypsum powder (the main component is calcium sulfate dihydrate CaSO4.2H2O) is mixed and stirred with a certain proportion of water and a crystal-changing agent to form a dihydrate gypsum slurry, which enters the autoclave reactor. Under pressurized and heated conditions, the double-layer structure of the dihydrate gypsum in the slurry is destroyed, 3 / 4 of the H2O between the two ion layers is lost, and the remaining H2O recrystallizes with CaSO4 to become α-type semi-hydrated high-strength gypsum crystals, and then the crystals are The gypsum material is filtered and dehydrated, then transported to a drying furnace for high-temperature calcination to produce α high-strength gypsum finished products. After the gypsum material is filtered, an auger is used as a conveyor to transport the gypsum material to the feed hopper of the dryer. In order to prevent the temperature of the gypsum material from dropping during the feeding process and to avoid the strength drop and crystal reduction of α-type semi-hydrated high-strength gypsum crystals, an insulation structure needs to be installed on the periphery of the auger conveying barrel to insulate the gypsum material. However, when an insulation structure is currently provided on the periphery of the auger conveying barrel, the insulation material is usually wrapped around the periphery of the auger conveying barrel, and then the insulation material is wrapped with stainless steel sheet and fixed by installing clamps. The insulation structure is very inconvenient to disassemble and assemble repeatedly, and it is not convenient to regularly replace the insulation material inside the insulation structure in the later stage. After long-term use, the insulation effect of the insulation structure will decrease. Utility Model Content

[0003] The purpose of the utility model is to provide a dragon conveying insulation device in order to solve the above-mentioned problem. The insulation outer cover and the insulation inner lining on both sides can be detachably fixed on the outer sides of the dragon conveying barrel body through the horizontal sliding cooperation between the plug block and the slot and the vertical sliding cooperation between the limit rod and the limit hole. The combination of the insulation outer cover and the insulation inner lining with the dragon conveying barrel body is simple and easy to operate, as described below for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a dragon conveying and heat preservation device, comprising a dragon conveying barrel body, the axis of the dragon conveying barrel body is arranged along the longitudinal direction, the front and rear positions of the top and bottom of the outer periphery of the dragon conveying barrel body are both vertically extended and fixed with mounting seats along the longitudinal direction, and the two sides of the mounting seat are both installed with disassembly and assembly components;

[0006] Both sides of the outer periphery of the auger conveying barrel body are coaxially covered with heat-insulating outer covers, and the heat-insulating outer covers at both sides are folded together, and the inner periphery of the heat-insulating outer covers is coaxially covered and fixed with heat-insulating inner liners, and the heat-insulating inner liners are attached to the outer periphery of the auger conveying barrel body;

[0007] The disassembly and assembly components at both sides are partially fixed at the corresponding front and rear positions of the top and bottom of the outer periphery of the thermal insulation cover, and the thermal insulation cover is detachably fixed to the outer periphery of the auger conveying barrel body through the corresponding disassembly and assembly components.

[0008] Preferably, the discharge pipe of the auger conveying barrel body is located at the front bottom of the periphery and faces vertically downward.

[0009] Preferably, the inner contour of the thermal insulation lining is in close contact with the outer contours of the auger conveying barrel body and the discharge pipe.

[0010] Preferably, the thermal insulation linings are all sponge linings.

[0011] Preferably, the mounting seats are all stainless steel sheets with a thickness not greater than 6 mm.

[0012] Preferably, the disassembly and assembly components include wing plates and fixed sleeves, the wing plates are fixed at the front and rear positions of the top and bottom of the outer periphery of the thermal insulation outer cover at both sides along the longitudinal vertical extension, and the end surfaces of the wing plates at both sides facing each other are fixed with plug blocks horizontally along the transverse direction, the outer end surfaces of the plug blocks at the upper and lower positions away from each other are provided with limiting holes vertically, the fixing sleeves are fixed at both sides of the mounting seat along the transverse direction, and the outer end surfaces of the fixing sleeves at both sides away from each other are provided with slots horizontally along the transverse direction, and the slots correspond to the plug blocks one by one and slide in conjunction with each other laterally.

[0013] Preferably, the outer end surfaces of the fixing sleeves at the upper and lower positions that are away from each other are both provided with mounting holes along the vertical direction, the mounting holes are both vertically connected with the corresponding slots, and the mounting holes are both vertically coaxial with the corresponding limiting holes, the mounting holes are both vertically coaxially slidably matched with limiting rods, and the inner ends of the limiting rods at the upper and lower positions that are close to each other are vertically slidably matched with the corresponding limiting holes, the outer ends of the limiting rods at the upper and lower positions that are away from each other extend out of the corresponding outer end surfaces of the fixing sleeve and are coaxially fixed with handles, the part of the limiting rod located between the corresponding handle and the outer end surface of the fixing sleeve is coaxially gap-matched with a spring, and the two ends of the spring are respectively fixedly connected to the corresponding handle and the outer end surface of the fixing sleeve.

[0014] Preferably, the cross-sectional shapes of the insert block and the slot along the longitudinal vertical plane are both rectangular.

[0015] Preferably, the slots are all blind slots in the transverse direction, and the inner ends of the insert blocks are in close contact with the inner ends of the corresponding slots.

[0016] By adopting the above-mentioned dragon conveying and heat-insulating device, specifically during the use of the auger conveying barrel body, since at the beginning, the plug block is laterally slidably matched with the slot, and the limit rod is vertically slidably matched with the limit hole, the heat-insulating outer cover and the heat-insulating inner lining can be detachably fixed to the outer side of the auger conveying barrel body by means of the transverse sliding cooperation between the plug block and the slot and the vertical sliding cooperation between the limit rod and the limit hole. The combination of the heat-insulating outer cover and the heat-insulating inner lining with the auger conveying barrel body is simple and easy to operate, and then it is convenient to combine the heat-insulating outer cover and the heat-insulating lining at the two sides. The outer heat preservation of the auger conveying barrel body is carried out by embracing the outer periphery of the auger conveying barrel body, which is beneficial to prevent the temperature of the gypsum material from dropping during the feeding process, and avoids the strength reduction and crystal reduction of the α-type semi-hydrated high-strength gypsum crystals. When the insulation outer cover and the insulation inner lining need to be removed later, multiple people hold all the handles at the same side position at the same time to pull the limit rod and make the inner ends of the limit rods fall out of the corresponding limit holes by stretching the springs. After that, the insulation outer cover can be moved outward by keeping the limit rod pulled so that the plug blocks can be laterally removed from the slots. The thermal insulation lining is then removed from the outer side of the auger conveying barrel body, and when the thermal insulation outer cover and the thermal insulation lining need to be installed again, the thermal insulation outer cover and the thermal insulation lining are picked up so that the plug block is horizontally aligned with the slot and slides in from the outside to the inside, and multiple people pull the corresponding limit rods on the same side vertically again at the same time, and the inner ends of the limit rods are stretched by the springs so that the inner ends of the limit rods are all retracted into the corresponding mounting holes, so as to prevent the limit rods from interfering with the horizontal sliding of the plug block along the slot. When the plug blocks slide horizontally along the slots until the inner ends of the plug blocks are in contact with the corresponding inner ends of the slots, it means that the limit rods are in contact with the corresponding inner ends of the slots. When the rod is vertically aligned with the limit hole, the handle is released, and the spring releases the stretched state to drive the limit rod to be inserted into the corresponding limit hole, so as to complete the reinstallation and fixation of the thermal insulation cover and the thermal insulation lining on the outer side of the auger conveying barrel body again. The disassembly and combination method of the thermal insulation cover and the thermal insulation lining with the auger conveying barrel body is simple and easy to operate, which is convenient for quickly fixing the thermal insulation cover and the thermal insulation lining on the outer side of the auger conveying barrel body for external insulation use, and is also convenient for regular inspection and replacement of the thermal insulation lining after the thermal insulation cover and the thermal insulation lining are disassembled at a later time.

[0017] The beneficial effects are as follows: 1. The utility model can detachably fix the insulation outer cover and the insulation inner lining at both sides to the outer periphery of the auger conveying barrel body by means of the horizontal sliding cooperation between the plug block and the slot and the vertical sliding cooperation between the limit rod and the limit hole. The combination of the insulation outer cover and the insulation inner lining with the auger conveying barrel body is simple and easy to operate, and then the auger conveying barrel body is externally insulated by closing the insulation outer cover and the insulation inner lining at both sides around the outer periphery of the auger conveying barrel body, which is beneficial to prevent the temperature of the gypsum material from dropping during the feeding process and avoid the strength drop and crystal reduction of α-type semi-hydrated high-strength gypsum crystals;

[0018] 2. Simply pull the limit rod out of the limit hole to allow the insert to laterally disengage from the slot and remove the thermal insulation cover and the thermal insulation lining from the outer side of the auger conveying barrel body. The separation method of the thermal insulation cover and the thermal insulation lining from the auger conveying barrel body is simple and easy to operate, which is convenient for quickly fixing the thermal insulation cover and the thermal insulation lining on the outer side of the auger conveying barrel body for external insulation use, and also convenient for regular inspection and replacement of the thermal insulation lining after the thermal insulation cover and the thermal insulation lining are removed at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is an overall axonometric schematic diagram of the utility model;

[0021] Figure 2 This utility model Figure 1 Cross-section diagram Figure 1 ;

[0022] Figure 3 This utility model Figure 2 A local enlarged view of point A;

[0023] Figure 4 This utility model Figure 1 Cross-section diagram Figure 2 ;

[0024] Figure 5 This utility model Figure 4 A partial enlarged view of point B;

[0025] Figure 6 This utility model Figure 1 The front external view of

[0026] Figure 7 This utility model Figure 1 Dorsal external view of ;

[0027] Figure 8 This utility model Figure 1 The left external view of

[0028] Fig. 9 This utility model Figure 1 A top view of the exterior;

[0029] Fig.10 This utility model Figure 1 External view from above.

[0030] The following are the descriptions of the reference numerals:

[0031] 1. Disassembly and assembly components; 101. Handle; 102. Spring; 103. Fixing sleeve; 104. Wing plate; 105. Insert block; 106. Slot; 107. Limit rod; 108. Limit hole; 109. Mounting hole; 2. Insulation cover; 201. Insulation lining; 3. Auger conveying barrel body; 301. Mounting seat; 302. Discharge pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0033] See also Figure 1-Figure 10As shown, the utility model provides a dragon conveying and heat preservation device, including a dragon conveying barrel body 3, the axis of the dragon conveying barrel body 3 is arranged in the longitudinal direction, and the front and rear positions of the top and bottom of the outer periphery of the dragon conveying barrel body 3 are both vertically extended and fixed with mounting seats 301 in the longitudinal direction, and the two sides of the mounting seats 301 are both installed with disassembly and assembly components 1. Both sides of the outer periphery of the auger conveying barrel body 3 are coaxially covered with heat preservation outer covers 2, and the heat preservation outer covers 2 at the two sides are folded together, and the inner periphery of the heat preservation outer covers 2 are coaxially covered and fixed with heat preservation linings 201, and the heat preservation linings 201 are all attached to the outer periphery of the auger conveying barrel body 3. The disassembly and assembly components 1 at the two side positions are partially fixed to the corresponding front and rear positions of the top and bottom of the outer periphery of the heat-insulating outer cover 2, and the heat-insulating outer cover 2 is detachably fixed to the outer periphery of the auger conveying barrel body 3 through the corresponding disassembly and assembly components 1. Specifically, the disassembly and assembly components 1 include wing plates 104 and fixed sleeves 103. The front and rear positions of the top and bottom of the outer periphery of the heat-insulating outer cover 2 at the two side positions are fixed with wing plates 104 extending vertically in the longitudinal direction, and the end surfaces of the wing plates 104 at the two side positions facing each other are fixed with plug blocks 105 horizontally in the transverse direction. The plug blocks 105 at the upper and lower positions are fixed to the outer periphery of the auger conveying barrel body 3. The outer end surfaces away from each other are provided with limiting holes 108 in the vertical direction, and the two sides of the mounting seat 301 are both fixed with fixing sleeves 103 in the horizontal direction, and the outer end surfaces away from each other of the fixing sleeves 103 in the two sides are both provided with slots 106 in the horizontal direction, and the slots 106 correspond to the plug blocks 105 one by one and slide in the horizontal direction, and the outer end surfaces away from each other of the fixing sleeves 103 in the upper and lower positions are both provided with mounting holes 109 in the vertical direction, and the mounting holes 109 are both vertically connected with the corresponding slots 106, and the mounting holes 109 are both connected with the corresponding limiting holes 106. 8 vertical coaxial comparison, the mounting holes 109 are all coaxially slidably matched with the limit rods 107, and the inner ends of the limit rods 107 at the upper and lower positions that are close to each other are vertically slidably matched with the corresponding limit holes 108, and the outer ends of the limit rods 107 at the upper and lower positions that are far away from each other extend out of the outer end surface of the corresponding fixing sleeve 103 and are coaxially fixed with the handle 101, and the part of the limit rod 107 located between the corresponding handle 101 and the outer end surface of the fixing sleeve 103 is coaxially gap-matched with the spring 102, and the two ends of the spring 102 are respectively connected to the corresponding handle 101 and the fixing sleeve 103. The outer end surface of the fixed sleeve 103 is fixedly connected. Such an arrangement makes it convenient to detachably fix the thermal insulation cover 2 and the thermal insulation lining 201 on both sides to the outer sides of the auger conveying barrel body 3 by means of the lateral sliding cooperation between the plug block 105 and the slot 106 and the vertical sliding cooperation between the limit rod 107 and the limit hole 108. At the same time, the plug block 105 can be laterally disengaged from the slot 106 by simply pulling the limit rod 107 out of the limit hole 108, so that the thermal insulation cover 2 and the thermal insulation lining 201 can be removed from the outer side of the auger conveying barrel body 3.

[0034] As a preferred solution in this case, the discharge pipe 302 of the auger conveying barrel body 3 is located at the front bottom of the periphery and vertically downward. This arrangement makes it easy to transport the gypsum material to the dryer feed hopper by aligning the bottom end of the discharge pipe 302 with the dryer feed hopper. The inner contour of the thermal insulation lining 201 is in close contact with the outer contours of the auger conveying barrel body 3 and the discharge pipe 302. This arrangement makes it easy for the thermal insulation lining 201 to improve the thermal insulation effect by being attached to the auger conveying barrel body 3.

[0035] At the same time, the thermal insulation lining 201 is a sponge lining. This arrangement allows the thermal insulation lining 201 to have a good and stable thermal insulation effect. The mounting seat 301 is a stainless steel sheet with a thickness of no more than 6 mm. This arrangement allows the mounting seat 301 to have a thinner thickness so that the end faces of the thermal insulation outer cover 2 at both sides that are close to each other can be closed and fitted together as much as possible, which helps to reduce the distance between the end faces of the thermal insulation outer cover 2 at both sides that are close to each other.

[0036] In addition, the cross-sectional shapes of the plug block 105 and the slot 106 along the longitudinal vertical plane are both rectangular. This arrangement facilitates a good positioning and guiding design when the plug block 105 and the slot 106 are slidingly matched. The slots 106 are all blind grooves in the horizontal direction, and the inner ends of the plug blocks 105 are in close contact with the inner ends of the corresponding slots 106. This arrangement facilitates the process of the plug block 105 sliding horizontally along the slot 106. When the limit rod 107 and the limit hole 108 are vertically coaxially compared, an obvious prompt can be given by the inner ends of the plug block 105 being in close contact with the inner ends of the corresponding slots 106.

[0037] With the above structure, specifically during the use of the auger conveying barrel body 3, since at the beginning, the plug block 105 and the slot 106 are slidably matched horizontally, and the limit rod 107 and the limit hole 108 are slidably matched vertically, the heat preservation outer cover 2 and the heat preservation inner lining 201 can be detachably fixed to the outer side of the auger conveying barrel body 3 by means of the lateral sliding cooperation between the plug block 105 and the slot 106 and the vertical sliding cooperation between the limit rod 107 and the limit hole 108. The combination of the heat preservation outer cover 2 and the heat preservation inner lining 201 and the auger conveying barrel body 3 is simple and easy to operate, and then it is convenient to close the heat preservation outer cover 2 and the heat preservation inner lining 201 at the two sides to embrace the auger conveying barrel body 3. The outer heat preservation of the auger conveying barrel body 3 is carried out in a way that the outer periphery of the barrel body 3 is conducive to preventing the temperature of the gypsum material from dropping during the feeding process, and avoiding the strength reduction and crystal reduction of the α-type semi-hydrated high-strength gypsum crystals. When it is necessary to remove the thermal insulation cover 2 and the thermal insulation lining 201 later, multiple people hold all the handles 101 at the same side position at the same time to pull the limit rod 107 and make the inner ends of the limit rods 107 slip out of the corresponding limit holes 108 by the way of being stretched by the spring 102, and then keep pulling the limit rod 107 to hold the thermal insulation cover 2 outward so that the plug blocks 105 are all laterally slipped out of the slots 106, and the thermal insulation cover 2 and the thermal insulation lining 201 are moved away. That is, when the outer side of the auger conveying barrel body 3 is removed and the insulation cover 2 and the insulation lining 201 need to be installed again, the insulation cover 2 and the insulation lining 201 are picked up to make the plug block 105 and the slot 106 respectively align horizontally and slide from the outside to the inside, and multiple people pull the corresponding limit rod 107 on the same side vertically again at the same time and make the inner end of the limit rod 107 be retracted into the corresponding mounting hole 109 by the way of being stretched by the spring 102, so as to prevent the limit rod 107 from interfering with the horizontal sliding of the plug block 105 along the slot 106. When the plug blocks 105 slide horizontally along the slot 106 until the inner ends of the plug blocks 105 are in contact with the inner ends of the corresponding slots 106, it means that the limit rods are in contact with the inner ends of the corresponding slots. 107 is vertically aligned with the limiting hole 108 respectively, then the handle 101 is released, the spring 102 will release the stretched state and drive the limiting rod 107 to be inserted into the corresponding limiting hole 108, so as to complete the reinstallation and fixation of the thermal insulation cover 2 and the thermal insulation lining 201 on the outer side of the auger conveying barrel body 3 again. The disassembly and combination method of the thermal insulation cover 2 and the thermal insulation lining 201 and the auger conveying barrel body 3 is simple and easy to operate, which is convenient for quickly fixing the thermal insulation cover 2 and the thermal insulation lining 201 on the outer side of the auger conveying barrel body 3 for external insulation use, and at the same time, it is convenient for regular inspection and replacement of the thermal insulation lining 201 after the thermal insulation cover 2 and the thermal insulation lining 201 are disassembled in the later stage.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A auger conveying and heat preservation device, comprising an auger conveying barrel body (3), characterized in that: The axis of the auger conveying barrel body (3) is arranged in the longitudinal direction, and mounting seats (301) are fixedly provided at the front and rear positions of the top and bottom of the outer periphery of the auger conveying barrel body (3) and extend vertically in the longitudinal direction, and disassembly and assembly components (1) are installed at positions on both sides of the mounting seat (301); Both sides of the outer periphery of the auger conveying barrel body (3) are coaxially covered with a heat-insulating outer cover (2), and the heat-insulating outer covers (2) at both sides are folded together, and the inner periphery of the heat-insulating outer cover (2) is coaxially covered and fixed with a heat-insulating inner lining (201), and the heat-insulating inner lining (201) is attached to the outer periphery of the auger conveying barrel body (3); The disassembly and assembly components (1) at the two side positions are partially fixed at the corresponding front and rear positions of the top and bottom of the outer periphery of the thermal insulation cover (2), and the thermal insulation cover (2) is detachably fixed to the outer periphery of the auger conveying barrel body (3) through the corresponding disassembly and assembly components (1).

2. According to claim 1, a Jiaolong conveying and heat preservation device is characterized in that: The discharge pipe (302) of the auger conveying barrel body (3) is located at the front bottom of the periphery and faces vertically downward.

3. According to claim 2, a Jiaolong conveying and heat preservation device is characterized in that: The inner contour of the thermal insulation lining (201) is in close contact with the outer contours of the auger conveying barrel body (3) and the discharge pipe (302).

4. According to claim 3, a Jiaolong conveying and heat preservation device is characterized in that: The thermal insulation linings (201) are all sponge linings.

5. The dragon conveying and heat preservation device according to claim 4, characterized in that: The mounting seats (301) are all stainless steel thin plates with a thickness not greater than 6 mm.

6. A Jiaolong conveying and heat preservation device according to any one of claims 1 to 5, characterized in that: The disassembly and assembly components (1) each comprise a wing plate (104) and a fixing sleeve (103); the wing plates (104) are fixed to the front and rear positions of the top and bottom of the outer periphery of the heat-insulating outer cover (2) at both sides and extend vertically in the longitudinal direction; the end surfaces of the wing plates (104) at both sides and facing each other are fixed with plug blocks (105) horizontally in the transverse direction; the outer end surfaces of the plug blocks (105) at the upper and lower positions and away from each other are provided with limiting holes (108) in the vertical direction; the fixing sleeves (103) are fixed to the two sides of the mounting seat (301) horizontally in the transverse direction; the outer end surfaces of the fixing sleeves (103) at both sides and away from each other are provided with slots (106) horizontally in the transverse direction; the slots (106) correspond to the plug blocks (105) one by one and are slidably matched in the transverse direction.

7. The dragon conveying and heat preservation device according to claim 6, characterized in that: The outer end surfaces of the fixing sleeves (103) at the upper and lower positions, which are away from each other, are provided with mounting holes (109) in the vertical direction. The mounting holes (109) are vertically connected with the corresponding slots (106), and the mounting holes (109) are vertically coaxially aligned with the corresponding limiting holes (108). The mounting holes (109) are vertically coaxially slidably matched with the limiting rods (107), and the inner ends of the limiting rods (107) at the upper and lower positions, which are close to each other, are aligned with the corresponding limiting holes (108). ) are vertically slidably matched, the outer ends of the limit rods (107) at the upper and lower positions, which are away from each other, extend out of the corresponding outer end surface of the fixing sleeve (103) and are coaxially fixed with a handle (101), and the portion of the limit rod (107) located between the corresponding handle (101) and the outer end surface of the fixing sleeve (103) is coaxially gap-matched with a spring (102), and the two ends of the spring (102) are respectively fixedly connected to the corresponding handle (101) and the outer end surface of the fixing sleeve (103).

8. The dragon conveying and heat preservation device according to claim 7, characterized in that: The cross-sectional shapes of the insert block (105) and the slot (106) along the longitudinal vertical plane are both rectangular.

9. A Jiaolong conveying and heat preservation device according to claim 7 or 8, characterized in that: The slots (106) are all blind slots in the transverse direction, and the inner ends of the insert blocks (105) are in close contact with the inner ends of the corresponding slots (106).

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