Trolley type gas furnace

Abstract

The utility model discloses a trolley type gas furnace which comprises a furnace body, a trolley and a rotary table, the top of the rotary table is provided with a connection track matched with the track in an aligned mode, and the trolley is driven by a linear driving mechanism to do linear motion along the path from the bottom of a hearth to the rotary table. Due to the fact that the trolley can linearly move along the path from the bottom of the hearth to the rotary table through the linear driving mechanism, the loading and unloading processes of workpieces become simpler and more efficient. The trolley can slide to the rotary table, so that the workpiece can be directly transferred to the rotary table from the hearth, and then rotation or other treatment steps can be carried out; through the configuration, the working efficiency is improved, the working time of an operator in a high-temperature area is shortened, and the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gas furnaces, in particular to a trolley type gas furnace. Background Art

[0002] A trolley-type gas furnace is an industrial or commercial baking equipment, usually used for large-scale baking, heat treatment or material processing. This furnace is characterized by a trolley or cart inside that can be rolled inside the furnace to facilitate loading and unloading of large workpieces or batches of products. Trolley-type furnaces are commonly used in industries such as metal processing, ceramic firing, and glass processing.

[0003] The trolley device of the trolley-type gas furnace allows the user to easily move heavy or large workpieces inside the furnace and remove them as a whole after processing. This not only improves work efficiency, but also reduces safety risks when removing hot workpieces. Since the trolley can be pushed in and out of the furnace directly, the operator does not need to enter the high-temperature area, which significantly reduces labor intensity and the risk of thermal contact accidents. In addition, large workpieces or large batches of small parts can be heat treated at the same time, which improves production throughput and work continuity.

[0004] However, there are also some disadvantages. The trolley can only move along a straight track when entering and exiting the furnace body. Sometimes when it is necessary to turn and load and unload the workpiece on the trolley, the operation is inconvenient.

[0005] Therefore, how to solve the deficiencies in the above-mentioned prior art is the subject of this utility model research. Summary of the invention

[0006] In order to solve the above problems, the utility model discloses a trolley type gas furnace.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions: a trolley-type gas furnace, comprising a furnace body, a trolley and a turntable, the furnace body having a furnace, a track connected to the edge of the turntable extending from the lower side of the furnace, the trolley being slidably arranged on the track, a refractory bottom plate being detachably arranged at the bottom of the furnace, and the refractory bottom plate being located on the trolley;

[0008] The top of the turntable is provided with a docking track aligned with the track, and the trolley is driven by a linear drive mechanism to perform linear motion along the path from the bottom of the furnace to the turntable.

[0009] In the above scheme, a cooling fan group is arranged in the vertical direction on the upper side of the furnace body corresponding to the furnace door. The cooling fan group is driven to move in the vertical direction by a vertical linear drive mechanism and can descend to the side of the trolley when the trolley is moved out of the furnace body.

[0010] In the above scheme, a sealing groove is provided at the bottom of the furnace corresponding to the side of the trolley, and the sealing groove is filled with a refractory sealing block, and the refractory sealing block is used to be clamped and matched with the sealing frame of the trolley.

[0011] In the above scheme, a sealing convex strip is arranged at the top end of the sealing frame along its length direction, and a sealing groove is arranged in the fire-resistant sealing block corresponding to the sealing convex strip.

[0012] In the above scheme, a buffer assembly is arranged in the furnace corresponding to the trolley, and the buffer assembly includes a pressure block slidably arranged relative to the furnace in a horizontal direction, and a spring is arranged between the pressure block and the side wall of the furnace, and the two ends of the spring act on the pressure block and the side wall of the furnace respectively.

[0013] In the above scheme, the refractory bottom plate is slidably arranged relative to the trolley in the vertical direction, and the sealing frame of the trolley is provided with an effective inclined surface extending from the outside to the inside on the side facing the refractory bottom plate, and the side edge of the refractory bottom plate is provided with a pressing inclined surface corresponding to the effective inclined surface, and the sealing frame lifts the refractory bottom plate upward through the effective inclined surface so that the refractory bottom plate is fitted together with the bottom of the furnace.

[0014] In the above scheme, two furnace bodies are correspondingly arranged on the same straight line on both sides of the turntable, and the tracks of the two furnace bodies correspond to the connecting tracks of the turntable.

[0015] Compared with the prior art, the utility model has the following advantages: the trolley-type gas furnace of the present application comprises a furnace body, a trolley and a turntable, the top of the turntable has a docking track that is aligned with the track, the trolley is driven by a linear drive mechanism, and moves linearly along the path from the bottom of the furnace to the turntable; since the trolley can move linearly along the path from the bottom of the furnace to the turntable through the linear drive mechanism, such an arrangement makes the loading and unloading process of the workpiece simpler and more efficient; the trolley can slide onto the turntable, so that the workpiece can be directly transferred from the furnace to the turntable, and then rotated or other processing steps are performed; this configuration improves work efficiency, reduces the working time of operators in high-temperature areas, and reduces safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the positions of the trolley-type gas furnace and the turntable in the embodiment of the present application;

[0017] Figure 2 A top view of another turntable in an embodiment of the present application;

[0018] Figure 3 for Figure 1 A partial enlarged schematic diagram in the middle;

[0019] Figure 4 for Figure 3 Schematic diagram after removing the trolley;

[0020] Figure 5 It is a schematic diagram of the structure of the trolley in the embodiment of the present application. DETAILED DESCRIPTION

[0021] The present invention is further explained below in conjunction with specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Example 1: See Figure 1-2 A trolley-type gas furnace comprises a furnace body 100, a trolley 200 and a turntable 300, wherein the furnace body 100 has a furnace 101, a track 400 connected to the edge of the turntable 300 extends from the lower side of the furnace 101, the trolley 200 is slidably arranged on the track 400, and a refractory bottom plate 102 is detachably arranged at the bottom of the furnace 101, and the refractory bottom plate 102 is located on the trolley 200;

[0023] The furnace 101 has an opening on the outside, which is sealed by the furnace door 105. For example, the furnace door 105 and the furnace 101 can be sealed by pressing the closed furnace door 102 against the frame of the furnace 101 and the side of the trolley 200 through an existing cylinder pressing mechanism, so as to achieve the effect of sealing the entire furnace 101.

[0024] The furnace door 105 and the furnace body 100 are installed in an existing up-and-down opening and closing manner; in a possible implementation manner, the furnace door is composed of an aluminum silicate fiber lining and a steel structure shell, and the frame around the furnace door is made of heat-resistant cast iron (RQTS i5.5) to prevent deformation; the driving mechanism of the furnace door 105 adopts a chain-type electric lifting mechanism;

[0025] The refractory materials of the refractory bottom plate 102 are, from bottom to top, a calcium silicon board insulation layer, a lightweight brick insulation layer, and a heavy refractory brick with high strength and good thermal stability on the top;

[0026] To maintain fire resistance, the periphery of the trolley 200 is cast with refractory castables;

[0027] The frame is composed of crossbeams, longitudinal beams and table steel plates. The crossbeams are welded steel structures, which can effectively transfer the weight of the trolley to the longitudinal beams. The longitudinal beams are also welded steel structures, which can effectively transfer the weight of the trolley to the wheels, so as to withstand the impact of heavy loads. The frame frame is a heat-resistant cast iron (RQTS i5) frame.

[0028] The top of the turntable 300 has a docking track 301 aligned with the track 400. The trolley 200 is driven by a linear drive mechanism to move linearly along the path from the bottom of the furnace 101 to the turntable 300.

[0029] The docking track 301 at the top of the turntable 300 is flush with the track 400. The track 400 and the docking track 301 use the same double-row track. When the trolley 200 moves out of the track 400, it can move along the docking track 301 to the middle part of the turntable 300 and be driven to rotate by the turntable 300. The bottom end of the turntable 300 is rotatably installed in the installation groove opened on the ground through a bearing. A circle of gear rings is arranged on the outer side of the bottom end of the turntable 300. The rotating mechanism is a gear + reducer horizontal rotation drive form, and the speed is controlled by a frequency converter. After the entire trolley 200 runs onto the rotating mechanism platform, it can be positioned using a travel switch to ensure that the trolley does not collide with the fixed track on the ground. The motor cable of the trolley 200 uses a quick-plug connector. When the turntable 300 rotates, the cable is prevented from getting entangled with the rotation of the trolley.

[0030] In order to maximize the utilization rate of the turntable 300, two furnace bodies 100 can be arranged on the same straight line on both sides of the turntable 300, and the tracks 400 of the two furnace bodies 100 correspond to the connecting tracks 301 of the turntable 300. In this way, the two furnace bodies 100 can share one turntable 300 to realize the rotation operation of the fired workpiece.

[0031] Example 2: See Figure 1-2 A cooling fan group 103 is vertically arranged on the upper side of the furnace body 100 corresponding to the furnace door 102. The cooling fan group 103 is driven by a vertical linear drive mechanism to move in the vertical direction, and can be lowered to the side of the trolley 200 when the trolley 200 is moved out of the furnace body 100; the cooling fan group 103 specifically includes a plurality of fans installed on the same frame, and the frame is driven by a chain-type electric lifting mechanism, and is lowered when the trolley 200 is moved out of the furnace body 100, so as to dissipate heat for the workpiece on the trolley 200 to increase its cooling speed.

[0032] Example 3: See Figure 3-5The bottom of the furnace 101 is provided with a sealing groove 111 corresponding to the side of the trolley 200, and the sealing groove 111 is filled with a refractory sealing block 112, and the refractory sealing block 112 is used to clamp with the sealing frame 201 of the trolley 200. The refractory sealing block can adopt the same structure and material as the refractory bottom plate 102 in the above embodiment 1. When the trolley 200 moves along the track 400 to the bottom of the furnace 101, the sealing frame 201 of the trolley 200 is inserted into the sealing groove 111 and contacts with the refractory sealing block 112;

[0033] A sealing ridge 211 is provided at the top of the sealing frame 201 along its length direction, and a sealing groove 113 is provided in the refractory sealing block 112 corresponding to the sealing ridge 211; when the trolley 200 enters the bottom of the furnace 101, the sealing ridge 211 on its edge can be inserted into the sealing groove 113 to further improve the sealing effect.

[0034] In addition, a buffer assembly is provided in the furnace 101 corresponding to the trolley 200, and the buffer assembly includes a pressure block 104 slidingly arranged relative to the furnace 101 in a horizontal direction, and a spring 141 is arranged between the pressure block 104 and the side wall of the furnace 101, and the pressure block 104 is slidably mounted on a slide rod arranged at the bottom end of the furnace 101. The slide rod is at least two, and the spring 141 is mounted on the slide rod, and the two ends of the spring 141 act on the pressure block 104 and the side wall of the furnace 101 respectively; when the trolley 200 contacts the pressure block 104, the pressure block 104 can play a buffering role under the action of the spring 141, so as to prevent the trolley 200 from causing a large impact on the side wall of the furnace 101.

[0035] The refractory bottom plate 102 is slidably arranged relative to the trolley 200 in the vertical direction through a slide rail mechanism. A plurality of guide shafts are connected to the bottom of the refractory bottom plate 102, and the guide shafts are inserted into the trolley 200 in the vertical direction, thereby forming a sliding fit between the two.

[0036] The sealing frame 201 of the trolley 200 is provided with an action inclined surface 202 extending obliquely from outside to inside on one side facing the fire-resistant bottom plate 102, and the side edge of the fire-resistant bottom plate 102 is provided with a pressing inclined surface 121 corresponding to the action inclined surface 202;

[0037] The bottom edge of the furnace 101 is provided with a circle of pressing parts for aligning with the top of the refractory bottom plate 102, and the pressing parts and the refractory bottom plate 102 are made of the same material;

[0038] When the trolley 200 enters the furnace chamber 101, the furnace door 105 is closed, and the outer side of the furnace door 105 is driven by the cylinder to further clamp the edge of the trolley 200 inward. At this time, under the action of the clamping force of the furnace door 105, the acting inclined surface 202 on the sealing frame 201 slides inward and acts on the pressing inclined surface 121 of the refractory bottom plate 102, thereby lifting the refractory bottom plate 102 upward and making the refractory bottom plate 102 fit together with the bottom of the furnace chamber 101, further improving the sealing effect.

[0039] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A trolley-type gas furnace, characterized in that: The invention comprises a furnace body (100), a trolley (200) and a turntable (300), wherein the furnace body (100) has a furnace (101), a track (400) connected to the edge of the turntable (300) extends from the lower side of the furnace (101), the trolley (200) is slidably arranged on the track (400), a refractory bottom plate (102) is detachably arranged at the bottom of the furnace (101), and the refractory bottom plate (102) is located on the trolley (200); The top of the turntable (300) is provided with a docking track (301) aligned with the track (400), and the trolley (200) is driven by a linear drive mechanism to perform linear motion along a path from the bottom of the furnace (101) to the turntable (300).

2. A trolley-type gas furnace according to claim 1, characterized in that: A cooling fan group (103) is arranged in the vertical direction on the upper side of the furnace body (100) corresponding to the furnace door (105); the cooling fan group (103) is driven to move in the vertical direction by a vertical linear drive mechanism, and can be lowered to the side of the trolley (200) when the trolley (200) is moved out of the furnace body (100).

3. The trolley-type gas furnace according to claim 1, characterized in that: A sealing groove (111) is provided at the bottom of the furnace (101) corresponding to the side of the trolley (200), and a refractory sealing block (112) is filled in the sealing groove (111). The refractory sealing block (112) is used to be clamped and matched with the sealing frame (201) of the trolley (200).

4. A trolley-type gas furnace according to claim 3, characterized in that: A sealing convex strip (211) is provided at the top end of the sealing frame (201) along its length direction, and a sealing groove (113) is provided in the fire-resistant sealing block (112) corresponding to the sealing convex strip (211).

5. The trolley-type gas furnace according to claim 3, characterized in that: A buffer assembly is provided in the furnace (101) corresponding to the trolley (200), and the buffer assembly comprises a pressure block (104) slidably arranged in a horizontal direction relative to the furnace (101), and a spring (141) is provided between the pressure block (104) and the side wall of the furnace (101), and two ends of the spring (141) act on the pressure block (104) and the side wall of the furnace (101) respectively.

6. The trolley-type gas furnace according to claim 3, characterized in that: The refractory bottom plate (102) is slidably arranged relative to the trolley (200) in the vertical direction, and a sealing frame (201) of the trolley (200) is provided with an action inclined surface (202) extending from the outside to the inside on the side facing the refractory bottom plate (102), and a pressing inclined surface (121) corresponding to the action inclined surface (202) is provided on the side of the refractory bottom plate (102), and the sealing frame (201) lifts the refractory bottom plate (102) upwards through the action inclined surface (202) so that the refractory bottom plate (102) and the bottom of the furnace (101) are fitted together.

7. The trolley-type gas furnace according to claim 1, characterized in that: Two furnace bodies (100) are correspondingly arranged on the same straight line on both sides of the turntable (300), and the tracks (400) of the two furnace bodies (100) correspond to the connecting tracks (301) of the turntable (300).

Images