Heating furnace for keeping dynamic stability of solid particles

Abstract

The utility model relates to a heating furnace for keeping dynamic stability of solid particles, and belongs to the field of heating furnaces. Comprising a base; the furnace body is arranged on the base and comprises a heating part and a sealing part, the heating part is provided with a first notch capable of being embedded into the sealing part, and at least one of the heating part and the sealing part moves relative to the base; the partition plate is fixed to the heating part and provided with a second notch; the loading container is arranged on the sealing part; a vacuum cavity is formed in the heating part between the first notch and the second notch; and a vacuum pump communicated with the vacuum cavity is fixed on the heating part. The sealing part is driven to move towards one side of the heating part and block the heating part to form a complete furnace body, after the first notch and the second notch in the heating part are blocked, the vacuum cavity in the middle forms a sealed cavity, the vacuum pump pumps air in the vacuum cavity away, an air partition is formed, and therefore the heating effect is improved. The energy consumption of the heating part is reduced, and meanwhile, the heat is prevented from diffusing to the sealing part, so that the heat can be prevented from escaping and hurting operators.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a heating furnace for maintaining the dynamic stability of solid particles. Background Art

[0002] Coal is a representative of solid particles in a static state in a heating furnace. Examining the thermal stability of solid particle samples under static conditions is one of the important bases for solid particles in combustion, pyrolysis, gasification and other process technologies. When designing a dynamic thermal stability test device for solid particles, a heating furnace can be used to heat the solid particles, that is, the solid particles can be heated by extending the loading container into the heating furnace. However, according to the above-mentioned relevant national standards for the thermal stability test of coal, the furnace temperature of the heating furnace must reach above 700°C, at which time the heat radiation is strong. If a common top-opening heating furnace is used, the operator needs to approach the high-temperature furnace body, open the furnace cover, and extend the loading container containing solid particles into the heating furnace or take it out of the furnace. The operation is difficult and easy to get burned. Utility Model Content

[0003] Based on this, it is necessary to provide a heating furnace for maintaining the dynamic stability of solid particles, which is convenient for taking loading containers and avoids high temperature burns to operators, in order to solve the above technical problems.

[0004] The utility model provides a heating furnace for maintaining the dynamic stability of solid particles, comprising:

[0005] Base;

[0006] a furnace body, arranged on the base, comprising a heating part and a sealing part, wherein the heating part has a first notch capable of being embedded in the sealing part, and at least one of the heating part and the sealing part moves relative to the base;

[0007] a partition plate, fixed to the heating portion, and having a second notch;

[0008] A loading container, disposed on the sealing portion;

[0009] Wherein, a vacuum chamber is provided in the heating portion between the first notch and the second notch, and a vacuum pump connected with the vacuum chamber is fixed on the heating portion.

[0010] In one of the embodiments, a translation mechanism is installed on the base, and the translation mechanism includes a transmission roller, a sprocket chain unit and a motor. The base has two symmetrically arranged strip grooves, and the transmission rollers are rotatably installed in the bases at both ends of the strip grooves. The sprocket chain units are tensioned on the transmission rollers at both ends. A slider is slidably installed on the groove wall of the strip groove, and the slider is fixedly connected to the chain and the sealing part.

[0011] In one of the embodiments, a mounting groove is formed on the inner bottom surface of the first slot and extends toward the base, a sliding door is installed in the mounting groove through an elastic member, a wire wheel is installed on the adjacent transmission roller, a pulley is wound around the wire wheel, and one end of the pull rope away from the wire wheel passes through the base and the mounting groove in sequence and is fixed to the sliding door.

[0012] In one of the embodiments, the sealing portion includes a slide plate, a support frame and a first furnace door, the slide plate is installed between the support frame and the slider, and the first furnace door is elastically installed at one end of the support frame away from the slide plate.

[0013] In one of the embodiments, the first furnace door has a heat insulation layer.

[0014] In one of the embodiments, a latch is slidably mounted on a side of the heating portion close to the sealing portion, and a sleeve matching the latch is welded on the first furnace door.

[0015] In one of the embodiments, a second furnace door adapted to the second groove is installed on the first furnace door through a clamping mechanism, and the clamping mechanism includes a bidirectional screw rod, an adjustment plate and a connecting arm, the bidirectional screw rod is rotatably installed on the first furnace door, the adjustment plate is slidably installed on the first furnace door and a sliding rod is fixedly connected to the second furnace door, the bidirectional screw rod is threaded with symmetrically arranged threaded seats, and the two ends of the connecting arm are rotatably connected to the threaded seat and the adjustment plate respectively.

[0016] In one embodiment, the second furnace door has a heat insulation layer.

[0017] The above-mentioned heating furnace for maintaining the dynamic stability of solid particles, the solid particle sample is placed in the loading container, the sealing part is driven to move to one side of the heating part and seal the heating part to form a complete furnace body, after the first notch and the second notch in the heating part are sealed, the middle vacuum cavity forms a sealed cavity, the vacuum pump draws out the air in the vacuum cavity to form an air partition, while reducing the energy consumption of the heating part, it also blocks the diffusion of heat to the sealing part, thus avoiding heat escape and injury to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1A three-dimensional diagram of a heating furnace for maintaining dynamic stability of solid particles according to an embodiment of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the middle heating section;

[0021] Figure 3 for Figure 1 A partial schematic diagram of the middle translation mechanism;

[0022] Figure 4 for Figure 2 The middle front side shows the schematic diagram;

[0023] Figure 5 for Figure 1 A three-dimensional view of the middle sealing portion;

[0024] Figure 6 for Figure 1 A three-dimensional diagram of the clamping mechanism.

[0025] Reference numerals:

[0026] 100, base; 110, strip groove; 120, slider; 200, furnace body; 210, heating part; 212, first notch; 214, vacuum chamber; 216, mounting groove; 218, tension spring; 220, sealing part; 222, slide plate; 224, support frame; 226, first furnace door; 228, second furnace door; 230, vacuum pump; 240, slide door; 250, latch; 260, sleeve; 300, partition; 310, second notch; 400, loading container; 500, translation mechanism; 510, transmission roller; 520, sprocket chain unit; 530, motor; 540, reel; 550, pulley; 600, clamping mechanism; 610, bidirectional screw rod; 620, adjustment plate; 630, connecting arm; 640, slide rod; 650, threaded seat. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the utility model are for illustrative purposes only and do not represent the only implementation method.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification of the present utility model have the same meaning as those commonly understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used in the specification of the present utility model includes any and all combinations of one or more related listed items.

[0032] Combine the following Figure 1-Figure 6 The utility model is described as a heating furnace for maintaining the dynamic stability of solid particles.

[0033] like Figure 1 As shown, in one embodiment, a heating furnace for maintaining dynamic stability of solid particles includes a base 100 , a furnace body 200 , a partition 300 and a loading container 400 .

[0034] The furnace body 200 is arranged on the base 100, and includes a heating part 210 and a sealing part 220. The heating part 210 has a first notch 212 that can be embedded in the sealing part 220. At least one of the heating part 210 and the sealing part 220 moves relative to the base 100. Since the mass of hot air is less than that of cold air, the side-opening method allows the operator to safely and conveniently take the heated object from the heating part 210 to avoid burns; the partition 300 is fixed in the heating part 210 and has a second notch 310; the loading container 400 is arranged on the sealing part 220, refer to Figure 2 .

[0035] It should be noted that in order to better simulate the mutual collision and friction of solid particles in actual industrial application processes, the loading container 400 can be a rotating drum that rotates or a screening drum that moves up and down, and is installed on the sealing part 220 by snapping or bolting.

[0036] Specifically, refer to Figure 2 A vacuum chamber 214 is disposed in the heating portion 210 between the first notch 212 and the second notch 310 , and a vacuum pump 230 connected to the vacuum chamber 214 is fixed on the heating portion 210 .

[0037] In the heating furnace of this embodiment for maintaining the dynamic stability of solid particles, a solid particle sample is placed in a loading container 400, and the sealing portion 220 is driven to move to one side of the heating portion 210 and seal the heating portion 210 to form a complete furnace body 200. After the first notch 212 and the second notch 310 in the heating portion 210 are sealed, the middle vacuum cavity 214 forms a sealed cavity, and the vacuum pump 230 draws the air in the vacuum cavity 214 to form an air partition, which reduces the energy consumption of the heating portion 210 while blocking the diffusion of heat to the sealing portion 220, thereby preventing heat from escaping and injuring the operator.

[0038] In order to improve the tightness of the connection between the sealing part 220 and the heating part 210, the first notch 212 and the second notch 310 are both designed as recessed grooves with edges that can fit with the sealing part 220, thereby reducing heat spillage.

[0039] Since the temperature in the heating unit 210 during operation is as high as nearly 700° C., in order to improve the protection of the operator, as a preferred embodiment, reference is made to Figure 3A translation mechanism 500 is installed on the base 100, and the translation mechanism 500 includes a transmission roller 510, a sprocket chain unit 520 and a motor 530. The base 100 has two symmetrically arranged strip grooves 110. The transmission rollers 510 are rotatably installed in the base 100 at both ends of the strip groove 110. The sprocket chain unit 520 is tensioned on the transmission rollers 510 at both ends. A slider 120 is slidably installed on the groove wall of the strip groove 110. The slider 120 is fixedly connected to the chain and the sealing part 220. The transmission roller 510 is driven to rotate in forward and reverse directions by the motor 530 to control the moving direction of the sealing part 220. The slider 120 can provide smooth support when the sealing part 220 moves.

[0040] When filling the solid particle sample, the heat overflowing from the open heating part 210 is likely to burn the operator. Figure 4 In order to improve the environmental safety performance around the heating part 210 during non-test periods, an installation groove 216 is extended from the bottom surface of the first slot 212 toward the base 100, and a sliding door 240 is installed in the installation groove 216 through an elastic member, and the elastic member is a tension spring 218. A wire wheel 540 is installed on the adjacent transmission roller 510, and a pull rope 550 is wound around the wire wheel 540. The end of the pull rope 550 away from the wire wheel 540 passes through the base 100 and the installation groove 216 in sequence and is fixed to the sliding door 240.

[0041] When the sealing part 220 approaches the heating part 210, the rotating wire wheel 540 gradually tightens the pull rope 550 to drive the sliding door 240 to be stored in the installation groove 216 to expose the first notch 212 and then engage with the sealing part 220. During non-testing, the tension spring 218 resets the sliding door 240 to its original state to seal the first notch 212.

[0042] The sealing part 220 includes a slide plate 222, a support frame 224 and a first furnace door 226. The slide plate 222 is installed between the support frame 224 and the slider 120. The first furnace door 226 is elastically installed at one end of the support frame 224 away from the slide plate 222. The first furnace door 226 has a heat insulation layer. A latch 250 is slidably installed on one side of the heating part 210 close to the sealing part 220. A sleeve 260 adapted to the latch 250 is welded on the first furnace door 226. Figure 5 .

[0043] It should be noted that the first furnace door 226 is elastically installed on the support frame 224, which means that the first furnace door 226 and the support frame 224 are non-fixedly connected by springs, and the distance of the first furnace door 226 is adjustable.

[0044] When the first furnace door 226 is engaged in the first slot 212 , the operator can use a tool to insert the latch 250 into the sleeve 260 to increase the connection between the first furnace door 226 and the heating part 210 . Under the pressure of the latch 250 , the first furnace door 226 moves toward the first slot 212 and is pressed tightly under the action of the spring force, thereby improving the sealing of the vacuum chamber 214 .

[0045] The first furnace door 226 is provided with a second furnace door 228 adapted to the second notch 310 through a pressing mechanism 600. The second furnace door 228 has a heat-insulating layer. Figure 6 The clamping mechanism 600 includes a bidirectional screw rod 610, an adjusting plate 620 and a connecting arm 630. The bidirectional screw rod 610 is rotatably mounted on the first furnace door 226. The adjusting plate 620 is slidably mounted on the first furnace door 226 and is fixedly connected to the second furnace door 228 by a sliding rod 640. A symmetrically arranged threaded seat 650 is threadedly mounted on the bidirectional screw rod 610. Both ends of the connecting arm 630 are rotatably connected to the threaded seat 650 and the adjusting plate 620, respectively.

[0046] When the first furnace door 226 is pressed tightly in the first notch 212 , the distance between the threaded seats 650 at both ends is controlled by rotating the bidirectional screw 610 , and then the adjustment plate 620 is pushed through the connecting arm 630 to drive the second furnace door 228 to be pressed tightly on the second notch 310 , thereby further improving the sealing of the vacuum chamber 214 .

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heating furnace for maintaining dynamic stability of solid particles, characterized in that: include: Base; a furnace body, arranged on the base, comprising a heating part and a sealing part, wherein the heating part has a first notch capable of being embedded in the sealing part, and at least one of the heating part and the sealing part moves relative to the base; a partition plate, fixed to the heating portion, and having a second notch; A loading container, disposed on the sealing portion; Wherein, a vacuum chamber is provided in the heating portion between the first notch and the second notch, and a vacuum pump connected with the vacuum chamber is fixed on the heating portion.

2. The heating furnace for maintaining dynamic stability of solid particles according to claim 1, characterized in that: A translation mechanism is installed on the base, and the translation mechanism includes a transmission roller, a sprocket chain unit and a motor. The base is provided with two symmetrically arranged strip grooves. The transmission rollers are rotatably installed in the bases at both ends of the strip grooves respectively. The sprocket chain units are tensioned on the transmission rollers at both ends. A slider is slidably installed on the groove wall of the strip groove, and the slider is fixedly connected to the chain and the sealing part.

3. The heating furnace for maintaining dynamic stability of solid particles according to claim 2, characterized in that: An installation groove is formed on the bottom surface of the first slot, extending toward the base. A sliding door is installed in the installation groove through an elastic member. A wire wheel is installed on the adjacent transmission roller. A pull rope is wound around the wire wheel. One end of the pull rope away from the wire wheel passes through the base and the installation groove in sequence and is fixed to the sliding door.

4. The heating furnace for maintaining dynamic stability of solid particles according to claim 2, characterized in that: The sealing part comprises a slide plate, a support frame and a first furnace door, wherein the slide plate is installed between the support frame and the sliding block, and the first furnace door is elastically installed at one end of the support frame away from the slide plate.

5. The heating furnace for maintaining dynamic stability of solid particles according to claim 4, characterized in that: The first furnace door has a heat insulation layer.

6. The heating furnace for maintaining the dynamic stability of solid particles according to claim 4, characterized in that: A latch is slidably mounted on one side of the heating portion close to the sealing portion, and a sleeve matching the latch is welded on the first furnace door.

7. The heating furnace for maintaining the dynamic stability of solid particles according to claim 4, characterized in that: A second furnace door adapted to the second groove is installed on the first furnace door through a clamping mechanism, and the clamping mechanism includes a bidirectional screw rod, an adjustment plate and a connecting arm. The bidirectional screw rod is rotatably installed on the first furnace door, and the adjustment plate is slidably installed on the first furnace door and a sliding rod is fixedly connected to the second furnace door. A symmetrically arranged threaded seat is threadedly installed on the bidirectional screw rod, and both ends of the connecting arm are rotatably connected to the threaded seat and the adjustment plate respectively.

8. The heating furnace for maintaining the dynamic stability of solid particles according to claim 7, characterized in that: The second furnace door has a heat insulation layer.

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