Explosion-proof device for cab of charging car of smelting furnace

Abstract

The utility model belongs to the technical field of blanking operation from an aluminum raw material charging car to a smelting furnace, and particularly relates to a smelting furnace charging car cab explosion-proof device which comprises an upper protection structure, a side protection structure, a lower protection structure and a telescopic sliding rail, and the upper protection structure is arranged between a cab and a lifting frame in a supporting mode; the side protection structures are hinged to the left side and the right side of the upper protection structure. The lower protection structure is located under the upper protection structure and fixedly installed on the bracket. The upper end and the lower end of the telescopic sliding rail are fixed to the upper protection structure and the lower protection structure respectively, and the lower protection structure slides up and down through the telescopic sliding rail. The anti-explosion device is ingenious and reasonable in overall structural design, the two sides and the front of the cab of the charging vehicle can be effectively protected, the cab is prevented from being impacted by explosion, and the personal safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of unloading operation of an aluminum raw material charging vehicle into a smelting furnace, in particular to an explosion-proof device for a cab of a smelting furnace charging vehicle. Background Art

[0002] The smelting process of aluminum alloy raw materials in the smelting furnace is an important link in the aluminum processing industry. In this process, many factors are intertwined, making the situation extremely complicated. If you are not careful, it may cause abnormal situations such as explosions. This is not only a test of the operator's rigorous operation and strict compliance with regulations, but also a test of the practicality and stability of related equipment.

[0003] Especially in winter, the temperature difference between the inside and outside of the smelting furnace is large. When the operator controls the charging truck to approach the smelting furnace, the windshield of the cab may expand and burst due to thermal shock, causing harm to the operator. In addition, hydrogen and oxygen will be decomposed during the smelting of aluminum materials containing water, and violent explosions will occur in the high temperature environment of the smelting furnace. Not only will the strong high-pressure airflow cause direct damage to the cab and operators, but it may also be accompanied by high-temperature aluminum alloy molten liquid splashing everywhere, causing secondary damage to the cab and operators.

[0004] Therefore, in such a high-risk working environment, it is particularly important to research and develop an explosion-proof device to ensure the safety of operators when an explosion occurs and avoid damage to the cab of the charging truck. Summary of the invention

[0005] The utility model aims to solve the above-mentioned problems and shortcomings and provide a smelting furnace charging car cab explosion-proof device, which can effectively isolate the air flow impact and the splash of high-temperature aluminum alloy melt, and ensure the personal safety of the operator.

[0006] To achieve the above purpose, the technical solution adopted is:

[0007] The utility model provides an explosion-proof device for a cab of a charging vehicle for a smelting furnace, wherein the charging vehicle comprises a cab, a lifting frame is arranged on a vehicle body directly in front of the cab, a lifting chain is arranged on the lifting frame, and a bracket for placing aluminum raw materials is connected to the end of the lifting chain, and is characterized in that it comprises:

[0008] An upper protective structure, which is supported and arranged between the cab and the lifting frame;

[0009] A side protection structure, which is hingedly arranged on the left and right sides of the upper protection structure;

[0010] A lower protective structure, which is located directly below the upper protective structure and is fixedly mounted on the bracket;

[0011] And a telescopic slide rail, the upper and lower ends of which are respectively fixed on the upper protective structure and the lower protective structure, and the lower protective structure slides up and down through the telescopic slide rail.

[0012] According to the utility model of the smelting furnace charging truck cab explosion-proof device, further, the upper protective structure includes an upper protective plate, the front side of the upper protective plate is connected and fixed to the lifting frame through the second fixing rod, and the rear side is connected and fixed to the cab through the first fixing rod.

[0013] According to the utility model of the smelting furnace charging truck cab explosion-proof device, further, the side protection structure includes a side protection plate, the front side of the side protection plate is hingedly provided with a connecting rod, the end of the connecting rod is provided with a strong magnetic suction cup, and the strong magnetic suction cup is adsorbed on the lifting frame.

[0014] According to the utility model of the explosion-proof device for the cab of the smelting furnace charging truck, further, there is a certain angle between the side protection plate and the upper protection plate, and the angle ranges from 120° to 150°.

[0015] According to the utility model of the explosion-proof device for the cab of the smelting furnace charging truck, further, the lower protective structure includes a lower protective plate, a support tube is welded to the bottom end of the lower protective plate, and fixed foot plates are pivotally connected to the left and right sides of the support tube, and the fixed foot plates are fixed on the bracket.

[0016] According to the utility model, the explosion-proof device for the cab of the smelting furnace charging truck, further, the telescopic slide rail includes a first slide rail and a second slide rail slidably sleeved inside the first slide rail, and the second and first slide rails are respectively fixedly arranged on the upper protective plate and the lower protective plate.

[0017] According to the utility model of the explosion-proof device for the cab of the smelting furnace charging truck, further, a limiting block welded to the upper protective plate is arranged on the top of the second slide rail for limiting the movement of the first slide rail.

[0018] According to the utility model of the explosion-proof device for the cab of the smelting furnace charging truck, further, an observation port is opened on the upper part of the lower protective plate, and the material used for the observation port is a transparent acrylic plate or fiberglass.

[0019] According to the utility model of the explosion-proof device for the cab of the smelting furnace charging truck, further, the side protection plates are hingedly arranged on the left and right sides of the upper protection plate by hinges, and the hinges are fixed by welding or screws.

[0020] The beneficial effects achieved by adopting the above technical solution are:

[0021] Compared with the prior art, the utility model realizes the connection between the side protection plate and the lifting frame through a strong magnetic suction cup and a connecting rod, so that there is a certain angle between the side protection plate and the upper protection plate, which provides a good field of view for the normal work of the operator and ensures the safe progress of the feeding work. Once an explosion occurs, the high-pressure airflow impacts the side protection plate to make the strong magnetic suction cup separate from the lifting frame, and the angle between the side protection plate and the upper protection plate becomes 180°, which effectively increases the protection area of ​​the side protection plate.

[0022] In addition, when the lifting chain lifts the aluminum raw material on the bracket to discharge it into the smelting furnace, the lower protective plate of the utility model slides upward together with the bracket through the telescopic slide rail, and the upper and lower protective plates gradually approach each other. When the first slide rail contacts the limit block, the sliding stops, and the upper and lower protective plates are completely closed, thereby isolating the smelting furnace from the cab and effectively preventing the front of the cab from being impacted by the explosion.

[0023] The overall structural design of the utility model is ingenious and reasonable, which prevents the cab from being impacted by the explosion and ensures the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. The drawings are only used to show some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0025] Figure 1 It is a front view of the explosion-proof device for the cab of the smelting furnace charging truck according to an embodiment of the utility model.

[0026] Figure 2 It is a side view of the explosion-proof device of the cab of the smelting furnace charging truck according to an embodiment of the utility model.

[0027] Figure 3 It is a schematic diagram of a smelting furnace charging car according to an embodiment of the utility model.

[0028] Figure 4 The utility model is a schematic diagram of the installation of the explosion-proof device of the cab of the smelting furnace charging vehicle according to the embodiment of the utility model.

[0029] Figure 5 It is a schematic diagram of a telescopic slide rail according to an embodiment of the utility model.

[0030] Figure 6 It is a schematic diagram of the positions of the upper protective structure and the side protective structure of an embodiment of the utility model.

[0031] Figure 7 It is a schematic diagram of fixing the upper protective structure and the side protective structure of the embodiment of the utility model on the charging vehicle.

[0032] Figure 8 It is a schematic diagram of the structure of the side protection structure of the embodiment of the utility model after being impacted by an explosion.

[0033] Fig. 9 It is a front view of the working state of the explosion-proof device in the cab of the smelting furnace charging car according to an embodiment of the utility model.

[0034] Fig.10 It is a side view of the working state of the explosion-proof device of the cab of the smelting furnace charging car according to the embodiment of the utility model.

[0035] Fig.11 It is a schematic diagram of the working state of the smelting furnace charging car after the explosion-proof device is installed in the embodiment of the utility model.

[0036] The meanings of the numbers in the figure are:

[0037] 110. Upper protective structure, 111. First fixing rod, 112. Second fixing rod, 113 upper protective plate;

[0038] 120. Side protection structure, 121 side protection plate, 122. Connecting rod, 123. Strong magnetic suction cup, 124. Hinge;

[0039] 130. Lower protective structure, 131. Lower protective plate, 132. Support pipe, 133. Fixed foot plate, 134. Observation port;

[0040] 140. telescopic slide rail, 141. first slide rail, 142. second slide rail, 143. limit block;

[0041] 210. Cab, 211. Windshield;

[0042] 220. Lifting frame, 230. Bracket, 240. Aluminum material, 250. Lifting chain. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings of the specific embodiments of the utility model to clearly and completely describe the exemplary scheme of the utility model. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be the common meanings understood by people with ordinary skills in the relevant field.

[0044] like Figure 1As shown, the explosion-proof device for the cab of the charging vehicle of the smelting furnace in this embodiment, the charging vehicle includes a cab 210, a lifting frame 220 is arranged on the vehicle body directly in front of the cab 210, and a lifting chain 250 is arranged on the lifting frame 220. The end of the lifting chain 250 is connected to a bracket 230 for placing aluminum raw materials 240. The lifting chain 250 can lift the bracket 230 and the aluminum raw materials 240 to the smelting furnace mouth when charging the smelting furnace. The explosion-proof device includes an upper protective structure 110, a side protective structure 120, a lower protective structure 130 and a telescopic slide rail 140. The upper protective structure 110 is supported and arranged between the cab 210 and the lifting frame 220, and is used to protect the top of the cab 210. The side protective structure 120 is hingedly arranged on the left and right sides of the upper protective structure 110, and can rotate within a certain range. The lower protective structure 130 is located directly below the upper protective structure 110, and is fixedly mounted on the bracket 230 of the charging vehicle 210. The upper and lower ends of the telescopic slide rail 140 are respectively fixed on the upper and lower protective structures, and cooperate with the bracket 230 to realize the upper and lower sliding of the lower protective structure 130.

[0045] like Figure 6 and Figure 7 As shown, the upper protection structure 110 includes an upper protection plate 113 , the front side of which is connected and fixed to the lifting frame 220 via a second fixing rod 112 , and the rear side of which is connected and fixed to the cab 210 via a first fixing rod 111 .

[0046] Preferably, the two ends of the first fixing rod 111 are respectively welded to the upper protection plate 113 and the cab 210, and the two ends of the second fixing rod 112 are respectively welded to the lifting frame 220 of the upper protection plate 113. The first and second fixing rods cooperate with each other to ensure that the upper protection structure 110 is stably supported and installed between the cab 210 and the lifting frame 220.

[0047] like Figure 7 and Figure 8 As shown, the side protection structure 120 includes a side protection plate 121, a connecting rod 122 is hingedly provided at the front side of the side protection plate 121, a strong magnetic suction cup 123 is provided at the end of the connecting rod 122, and the magnetic suction cup 123 is adsorbed on the lifting frame 220, so as to realize a detachable connection between the side protection plate 121 and the lifting frame 220. The strong magnetic suction cup 123 ensures a stable connection between the side protection plate 121 and the lifting frame 220 under normal circumstances; and ensures that the side protection plate 121 impacted by the high-pressure airflow can quickly detach from the lifting frame 220 when an explosion occurs.

[0048] A certain angle is maintained between the side protection plate 121 and the upper protection plate 113, and the angle range is 120° to 150°. The angle is adjusted by adjusting the adsorption position of the magnetic chuck 123 on the lifting frame 220 to maximize the operator's working field in the cab 210. Preferably, the angle in this embodiment is 135°.

[0049] Furthermore, once the smelting furnace explodes, the high-pressure airflow generated strongly impacts the side guard plate 121, causing the magnetic suction cup 123 to detach from the lifting frame 220. At the same time, the side guard plate 121 rotates, and finally the angle between the side guard plate 121 and the upper guard plate 113 changes from 135° to 180°, thereby effectively increasing the protection range of the side guard plate 121 and preventing both sides of the cab 210 from being damaged by the explosion.

[0050] like Figure 1 and Fig. 9 As shown, the lower protective structure 130 includes a lower protective plate 131, a support tube 132 is welded to the bottom end of the lower protective plate 131, and fixed foot plates 133 are pivotally connected to the left and right sides of the support tube 132, and the fixed foot plates 133 are welded and fixed to the bracket 230. The lower protective plate 131 is installed on the bracket 230 of the charging vehicle through the fixed foot plates 133, ensuring that the lower protective structure 130 can move up and down with the bracket 230.

[0051] like Figure 5 and Fig. 9 As shown, the telescopic slide rail 140 includes a first slide rail 141 and a second slide rail 142 slidably sleeved inside the first slide rail 141. The second slide rail 142 and the first slide rail 141 of the telescopic slide rail 140 are respectively fixed to the upper and lower protective plates by bolts, and the first slide rail 141 will slide up and down following the movement of the lower protective plate 131. A limit block 143 welded to the upper protective plate 113 is provided on the top of the second slide rail 142 to limit the movement of the first slide rail 141. When the first slide rail 141 slides upward along the second slide rail 142 and hits the limit block 143, the contraction of the telescopic slide rail 140 stops, causing the movement of the lower protective plate 131 to stop. At the same time, the upper and lower protective structures are completely closed to prevent the front of the cab 210 from being impacted by the explosion and to prevent the high-temperature molten liquid from splashing into the cab 210.

[0052] like Figure 9~Figure 11 As shown, an observation port 134 is provided on the upper portion of the lower protective plate 131. The material of the observation port 134 is a transparent acrylic plate or fiberglass. Preferably, fiberglass is used in this embodiment, which has good light transmittance and will not affect the operator's sight, and has good rigidity and high temperature resistance, and can effectively resist high-pressure airflow and thermal shock.

[0053] Furthermore, when the lower protection plate 131 stops moving upward, the observation port 134 and the charging vehicle windshield 211 are at the same level, ensuring that the operator can see the smelting furnace directly in front through the observation port 134 .

[0054] The side guard plates 121 are hingedly arranged on the left and right sides of the upper guard plate 113 by hinges 124, and the hinges 124 are fixed by welding or screws between the upper guard plate 113 and the side guard plates 121. Preferably, the present embodiment adopts a screw fixing method, which makes it easier to disassemble the upper guard plate 113 and the side guard plate 121, thereby reducing the maintenance cost of the explosion-proof device.

[0055] How this application works is:

[0056] (1) Fixed installation of explosion-proof device on the charging vehicle.

[0057] like Figure 2~Figure 4 As shown, the explosion-proof device is installed on the charging vehicle from the side. First, the explosion-proof device is placed as a whole between the cab 210 and the lifting frame 220, and the lower protection plate 131 is fixed to the bracket 230 by using the fixed foot plate 133. Then, the upper protection plate 113 is adjusted to the top of the cab 210 by extending and retracting the telescopic slide rail 140 up and down, thereby adjusting the installation position of the limit block 143.

[0058] like Figure 4 and Figure 7 As shown, the installation angles of the first fixing rod 111 and the second fixing rod 112 are then adjusted to ensure that the upper protective structure 110 is in a vertical state as a whole, and the first and second fixing rods are welded to the cab 210 and the lifting frame 220 respectively to achieve fixed installation of the upper protective plate 113.

[0059] Finally, by adjusting the adsorption position of the strong magnetic chuck 123 on the lifting frame 220, the angle between the upper protection plate 113 and the side protection plate 131 is adjusted to 135°, so as to achieve the fixed installation of the side protection plate 113. At this point, the fixed installation of the entire explosion-proof device on the charging vehicle is completed.

[0060] (2) Operation of explosion-proof devices.

[0061] like Figure 4 , Fig. 9 and Fig.11As shown, the charging cart after installing the explosion-proof device transports aluminum raw material 240 to the smelting furnace. After placing the aluminum raw material 240 on the bracket 230, the charging cart moves toward the smelting furnace. When the charging cart approaches the furnace mouth of the smelting furnace, the bracket 230 is lifted upward along the lifting frame 220, and the lower protective plate 113 fixed on the lifting frame 220 moves upward. Until the first slide rail 142 of the telescopic slide rail 140 touches the limit block 143, the movement of the lower protective structure 130 stops, and the upper and lower protective plates are completely closed. At this time, the furnace mouth of the smelting furnace is opened, and the operator observes the position of the furnace mouth through the observation hole 134, and pushes the aluminum raw material 240 into the smelting furnace. After completing the unloading operation, the charging cart moves away from the furnace mouth of the smelting furnace, and then the bracket 230 moves downward, and the upper and lower protective plates are gradually separated.

[0062] like Figure 6 and Figure 7 and Fig.11 As shown, when the furnace mouth of the smelting furnace is opened, once the smelting furnace explodes, the strong airflow generated first impacts the side protection plate 121, and the strong magnetic suction cup 123 is then separated from the lifting frame 220, and the side protection plate 121 rotates along the hinge 124, and finally the angle between the side protection plate 121 and the upper protection plate 113 changes from 135° to 180°, increasing the protection range of the side protection plate 121 and preventing damage to both sides of the cab 210. In addition, the upper and lower protection plates are completely closed at this time, effectively preventing the explosion airflow from impacting the cab 210 head-on.

[0063] In the entire explosion-proof device, the upper protection structure 110, the lower protection structure 130 and the side protection structure 120 cooperate to reduce the impact on the cab 210 when an explosion occurs, and prevent the high-temperature aluminum alloy melt generated by the explosion from splashing into the cab 210. In the whole process, the explosion-proof device provides barrier protection for the cab and ensures the personal safety of the operator.

[0064] The technical solution of the utility model is described above in combination with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

[0065] In the description of the present invention, it should be understood that the expressions “first” and “second” are used to describe the various elements of the present invention and do not represent any limitation on order, quantity or importance, but are only used to distinguish one component from another.

[0066] It should be noted that when one element is “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationships of direct connection and indirect connection are covered.

[0067] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a quantitative limitation. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0068] It should be noted that terms such as "up", "down", "left" and "right" indicating orientation or positional relationship are only used to indicate relative positional relationship. This is for the convenience of describing the present utility model, and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0069] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the role of these embodiments is only to exemplify, and is not intended to limit the scope, applicability or configuration of the present invention in any way. The protection scope of the present invention is defined by the attached claims and their equivalents. A person of ordinary skill in the art can make many changes to the above embodiments under the guidance of the present invention, and these changes all fall within the protection scope of the present invention.

Claims

1. An explosion-proof device for a cab of a charging vehicle for a smelting furnace, the charging vehicle comprising a cab, a lifting frame being arranged on the vehicle body directly in front of the cab, a lifting chain being arranged on the lifting frame, a bracket for placing aluminum raw materials being connected to the end of the lifting chain, characterized in that: include: An upper protective structure, which is supported and arranged between the cab and the lifting frame; A side protection structure, which is hingedly arranged on the left and right sides of the upper protection structure; A lower protective structure, which is located directly below the upper protective structure and is fixedly mounted on the bracket; And a telescopic slide rail, the upper and lower ends of which are respectively fixed on the upper protective structure and the lower protective structure, and the lower protective structure slides up and down through the telescopic slide rail.

2. The explosion-proof device for the driver's cab of the smelting furnace charging vehicle according to claim 1 is characterized in that: The upper protection structure comprises an upper protection plate, the front side of which is connected and fixed to the lifting frame via a second fixing rod, and the rear side of which is connected and fixed to the cab via a first fixing rod.

3. The explosion-proof device for the driver's cab of the smelting furnace charging vehicle according to claim 2 is characterized in that: The side protection structure comprises a side protection plate, a connecting rod is hingedly provided at the front side of the side protection plate, a strong magnetic suction cup is provided at the end of the connecting rod, and the strong magnetic suction cup is adsorbed on the lifting frame.

4. The explosion-proof device for the driver's cab of the smelting furnace charging vehicle according to claim 3 is characterized in that: There is a certain angle between the side protection plate and the upper protection plate, and the angle ranges from 120° to 150°.

5. The explosion-proof device for the driver's cab of the smelting furnace charging vehicle according to claim 2, characterized in that: The lower protection structure comprises a lower protection plate, a support tube is welded to the bottom end of the lower protection plate, and fixed foot plates are pivotally connected to the left and right sides of the support tube, and the fixed foot plates are fixed on the bracket.

6. The explosion-proof device for the driver's cab of the smelting furnace charging vehicle according to claim 5, characterized in that: The telescopic slide rail comprises a first slide rail and a second slide rail slidably sleeved inside the first slide rail, and the second slide rail and the first slide rail are fixedly arranged on the upper protective plate and the lower protective plate respectively.

7. The explosion-proof device for the driver's cab of the smelting furnace charging vehicle according to claim 6, characterized in that: A limiting block welded to the upper protective plate is arranged on the top of the second slide rail to limit the movement of the first slide rail.

8. The explosion-proof device for the driver's cab of a smelting furnace charging vehicle according to claim 5, characterized in that: An observation port is provided on the upper portion of the lower protective plate, and the material used for the observation port is a transparent acrylic plate or fiberglass.

9. The explosion-proof device for the driver's cab of a smelting furnace charging vehicle according to claim 3, characterized in that: The side protection plates are hingedly arranged on the left and right sides of the upper protection plate through hinges, and the hinges are fixed by welding or screws.

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