Calcining furnace feeding device in carbon calcination

Abstract

The utility model relates to a calcining furnace feeding device in carbon calcination, which comprises a blanking belt conveyor used for conveying materials from back to front and a movable skip car moving back and forth along the belt conveyor, a material pushing support is arranged on the front side of the movable skip car, and a lifting support capable of lifting up and down is arranged at the bottom of the material pushing support. A material pushing plate with the hinged axis extending in the left-right direction is hinged to the lifting support, a material pushing plate driving mechanism for driving the material pushing plate to adjust the pitching angle is arranged between the lifting support and the material pushing plate, a telescopic rod with the length extending in the front-back direction is further arranged on the lifting support, and the telescopic rod is located on the upper side of the material pushing plate. The front end of the telescopic rod is connected with the lifting support, and the rear end of the telescopic rod is provided with a dredging rod used for dredging the discharging port of the movable skip car in the vertical moving process of the lifting support. The utility model solves the technical problem in the prior art that the carbon calcining quality is influenced by non-uniform height and size of a material pile in a calcining furnace.

Description

Technical Field

[0001] The utility model relates to the field of feeding of carbon calcination, in particular to a feeding device of a calcination furnace in carbon calcination. Background Art

[0002] In the field of carbon calcination, a calcining furnace is used to calcine carbon. When using the calcining furnace, a feeding device is required to add materials into the calcining furnace.

[0003] The feeding device and feeding process in the prior art are as follows Figure 1~2 As shown: the feeding device includes a silo 1, a belt conveyor 2, a material lifting device 3, a discharge belt conveyor 4 and a mobile trolley 5 that can move back and forth along the discharge belt conveyor. A discharge port is arranged at the bottom of the mobile trolley, and a trolley valve is arranged at the discharge port. When the mobile trolley moves along the discharge belt conveyor, the material on the discharge belt conveyor can be moved to the discharge port, and then discharged into the corresponding calcining furnace.

[0004] When in use, the material in the silo falls onto the belt conveyor, then is lifted by the lifting device, and finally is transported from back to front by the unloading belt conveyor. Multiple calcining furnaces 6 are arranged at intervals along the front-to-back direction. The front-to-back movement of the mobile material cart and the on-off time of the valve of the material cart are manually controlled. Figure 2 As shown, the manually controlled mobile material cart stays at a material drop position for a period of time, and the material falls into the calcining furnace through the discharge port. Then the manually controlled mobile material cart moves to the next material drop position and stays for a period of time, and the material falls into the calcining furnace through the discharge port, until the mobile material cart travels through the entire calcining furnace in the front and rear directions.

[0005] The existing problems of the feeding device and feeding method are that: due to manual control, the moving distance of the mobile material cart is different each time, that is, the material drop position is uneven, and the manual control of the valve of the material cart cannot control the amount of material falling into the calcining furnace, which will cause Figure 2 The state in Figure 2 There are three material drop positions in the calcining furnace, forming three material piles 7 of different sizes and heights. During the calcining process, over-burning or under-burning defects may occur, resulting in inconsistent physical and chemical properties of carbon, affecting product quality. Utility Model Content

[0006] The utility model aims to provide a calcining furnace charging device for carbon calcination to solve the technical problem in the prior art that the material pile height and size in the calcining furnace are uneven and thus affect the carbon calcination quality.

[0007] In order to solve the above technical problems, the technical solution of a calcining furnace charging device in carbon calcination in the utility model is as follows:

[0008] A feeding device for a calcining furnace in carbon calcining comprises a feeding belt conveyor for conveying materials from back to front and a mobile material cart moving forward and backward along the belt conveyor, a pushing bracket is arranged on the front side of the mobile material cart, a lifting bracket capable of being lifted up and down is arranged on the bottom of the pushing bracket, a pushing plate with a hinge axis extending in the left and right directions is hinged on the lifting bracket, a pushing plate driving mechanism for driving the pushing plate to adjust the pitch angle is arranged between the lifting bracket and the pushing plate, a telescopic rod with a length extending in the front and back directions is also arranged on the lifting bracket, the telescopic rod is located on the upper side of the pushing plate, the front end of the telescopic rod is connected to the lifting bracket, and the rear end of the telescopic rod is arranged with a clearing rod for clearing the discharge port of the mobile material cart during the up and down movement of the lifting bracket.

[0009] Furthermore, the calcining furnace charging device also includes a material level meter for detecting the height of the material pile at each material dropping position.

[0010] Furthermore, the material level meter is a passive nuclear material level meter.

[0011] Furthermore, the material level meter corresponding to each material dropping position is arranged on the furnace wall of the calcining furnace.

[0012] Furthermore, a position sensor is provided on the mobile material cart, and the position sensor is constituted by a travel switch or a proximity switch provided on the mobile material cart.

[0013] Furthermore, the push plate driving mechanism is a push plate pitch angle adjustment cylinder arranged between the lifting bracket and the push plate.

[0014] Furthermore, the front end of the telescopic rod is hingedly connected to the lifting bracket, the hinge axis of the telescopic rod is extended in the left-right direction, and a telescopic rod adjustment mechanism for driving the telescopic rod to rotate and adjust is provided between the lifting bracket and the telescopic rod.

[0015] Furthermore, the telescopic rod adjusting mechanism is a telescopic rod adjusting cylinder arranged between the lifting bracket and the telescopic rod.

[0016] The beneficial effects of the utility model are as follows: after the mobile material cart completes the feeding of a calcining furnace, the mobile material cart moves back at least once. During the moving back process, the lifting bracket moves to a lower low position, and the lowermost end of the lifting bracket is lower than the highest position of the calcining furnace. The push plate goes deep into the furnace cavity of the calcining furnace. The pitch adjustment cylinder of the push plate drives the rear end of the push plate to flip downward to adjust the pushing angle of the push plate. As the mobile hopper moves from front to back, the push plate can flatten the upper end of the material pile, thereby further ensuring that the height of the carbon in the calcining furnace is uniform. The pitch angle adjustment of the push plate can adjust the resistance between the push plate and the material and the pushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0018] Figure 1 It is a feeding principle diagram of a feeding device in the prior art;

[0019] Figure 2 It is a diagram showing the material pile morphology in the calcining furnace after the material addition is completed in the prior art;

[0020] Figure 3 It is a structural schematic diagram of an embodiment of a calcining furnace charging device in a carbon calcining furnace in the utility model;

[0021] Figure 4 yes Figure 3 A magnified image of point A;

[0022] Figure 5 yes Figure 3 Schematic diagram of the state of the intermediate charging device after completing the charging of a calcining furnace;

[0023] Figure 6 yes Figure 5 A magnified view of point B;

[0024] Figure 7 yes Figure 6 Schematic diagram of the coordination between the lifting bracket, the telescopic rod and the push plate in the middle side view direction;

[0025] Figure 8 This is the detection principle diagram of the material level meter in the utility model;

[0026] Explanation of the reference numerals in the accompanying drawings: 1. silo; 2. belt conveyor; 3. material lifting device; 4. unloading belt conveyor; 5. mobile material cart; 6. calcining furnace; 7. material pile; 8. pusher bracket; 9. discharge port; 10. lifting bracket; 11. dredging rod; 12. telescopic rod; 13. pusher plate pitch angle adjustment cylinder; 14. pusher plate; 15. telescopic rod adjustment cylinder; 16. material level meter; 17. lifting beam. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] The utility model is a calcining furnace charging device for carbon calcination. Figures 3 to 8 As shown:

[0030] It includes a material unloading belt conveyor for conveying materials from back to front and a mobile material cart that moves forward and backward along the belt conveyor. A pusher bracket 8 is provided on the front side of the mobile material cart. A lifting bracket 10 that can be lifted up and down is provided at the bottom of the pusher bracket 8. The lifting bracket 10 includes lifting cylinders arranged at intervals in front and back. A pusher plate 14 with a hinge axis extending in the left and right direction is hinged on the lifting bracket. A pusher plate driving mechanism that drives the pusher plate to adjust the pitch angle is provided between the lifting bracket and the pusher plate. The pusher plate driving mechanism is a pusher plate pitch angle adjustment cylinder 13 provided between the lifting bracket and the pusher plate. There are two pusher plate pitch adjustment cylinders 13, one end of the two pusher plate pitch adjustment cylinders are respectively hingedly connected to the lower end of the corresponding lifting cylinder, and the other end of the two pusher plate pitch adjustment cylinders are hingedly connected to the two ends of the pusher plate 14.

[0031] The lifting bracket is also provided with a telescopic rod 12 extending in the front-to-back direction, the telescopic rod 12 is located on the upper side of the push plate, the front end of the telescopic rod is connected to the lifting bracket 10, and the rear end of the telescopic rod 12 is provided with a dredging rod 11 for dredging the discharge port of the mobile material car during the up and down movement of the lifting bracket. The telescopic rod is an electric push rod or a telescopic cylinder.

[0032] The front end of the telescopic rod 12 is hingedly connected to the lifting bracket, and the hinge axis of the telescopic rod 12 is extended in the left-right direction. A telescopic rod adjustment mechanism for driving the telescopic rod to rotate and adjust is provided between the lifting bracket 10 and the telescopic rod. The telescopic rod adjustment mechanism is a telescopic rod adjustment cylinder 15 provided between the lifting bracket and the telescopic rod. The lifting bracket includes a lifting beam 17 fixed between the lower ends of the two lifting cylinders. The rear end of the telescopic rod adjustment cylinder is hingedly connected to the lifting beam, and the front end of the telescopic rod adjustment cylinder is hingedly connected to the front end of the telescopic rod.

[0033] After the mobile material cart completes the charging of a calcining furnace, it moves back from front to back for a period of time, and at least one section of the material cart's discharge port no longer drops material. The mobile cart then moves from back to front to the upper side of the adjacent calcining furnace to charge the adjacent calcining furnace.

[0034] In this embodiment, during the process of feeding the material into the calcining furnace through each material drop position from the back to the front, as shown in FIG. Figure 4As shown, the telescopic rod retracts with the dredging rod, and at the same time, the telescopic rod adjusting cylinder drives the rear end of the telescopic rod to flip upward to a retracted state to prevent the dredging rod from affecting the discharge of materials through the discharge port. The push plate pitch adjusting cylinder drives the rear end of the push plate to flip upward to a retracted state, and the lifting bracket also moves to a high position. At this time, the lower end of the lifting bracket is higher than the highest position of the calcining furnace.

[0035] When the mobile silo has finished charging a calcining furnace, the valve of the material cart at the discharge port 9 of the mobile silo needs to be closed, and the mobile silo needs to be moved back from front to back for a period of time. During this process, the lifting bracket moves to Figure 6 In the low position state, the lower end of the lifting bracket is lower than the highest position of the calcining furnace, the pushing plate goes deep into the furnace cavity of the calcining furnace, and the pitch adjustment cylinder of the pushing plate drives the rear end of the pushing plate to flip downward to adjust the pushing angle of the pushing plate. As the mobile hopper moves from front to back, the pushing plate can flatten the upper end of the material pile, thereby further ensuring that the height of the carbon in the calcining furnace is uniform. The pitch angle adjustment of the pushing plate can adjust the resistance between the pushing plate and the material and the pushing efficiency.

[0036] If during the closing process of the material cart valve, material blocks the valve plate of the material cart valve, causing the valve plate to be unable to move horizontally and close the discharge port, the telescopic rod is extended so that the dredging rod is located at the lower side of the discharge port, and the telescopic rod adjusting cylinder is used to adjust the rear end of the telescopic rod to swing upward. The dredging rod swings around the hinge axis of the telescopic rod, and the dredging rod is extended into the discharge port to poke open the material blocked at the discharge port. Of course, this is only one form of poking open. The dredging rod can also be adjusted to a vertical posture. The dredging rod moves up and down with the lifting bracket, and pokes open the material blocked at the discharge port by moving vertically up and down. Therefore, the dredging rod can realize various forms of dredging operations to avoid material blocking the discharge port. The poked open material will fall into the calcining furnace instead of between the two calcining furnaces. Then the material cart valve is successfully closed, and the mobile material cart can be moved to the next calcining furnace for feeding operations.

[0037] The method for using the calcining furnace feeding device comprises the following steps: sequentially feeding at least two calcining furnaces 6 is realized by the feeding device; when feeding each calcining furnace, the mobile feeder 5 of the feeding device passes through N material-dropping positions from back to front, N is a positive integer not less than 3; at each material-dropping position, the feeding time length of the mobile feeder is S, wherein the spacing between two adjacent material-dropping positions is equal, and the spacing between two adjacent material-dropping positions is controlled by a position sensor; the feeding time length S of the mobile feeder at each material-dropping position is determined by a level meter, and the level meter detects the height of the material pile 7 corresponding to the material-dropping position; when the height of the material pile reaches the designed height, the mobile feeder stops feeding.

[0038] The level meter 16 in this embodiment is a passive nuclear level meter. The furnace wall of the calcining furnace is provided with the level meter 16 corresponding to each material drop position. Of course, in other embodiments of the utility model, the level meter can also be provided on the mobile material cart. In this scheme, the number of level meters used can be reduced. Since the spacing between two adjacent material drop positions is the same, the stacking angle of each material pile is the same. The passive nuclear level meter calculates the height of the material pile by detecting the energy spectrum of natural gamma rays in the material pile in the calcining furnace. It has no radiation source itself. The level meter is easy to install. It only needs to install the level probe on the bracket of the outer wall of the calcining furnace, and it does not need to contact the material pile. The traditional level switch signal is replaced with a continuous analog quantity to achieve continuous measurement of the material pile to determine the height of the material pile, thereby determining the in-place state, which is used as a benchmark for determining the length of time for the mobile material cart to add materials.

[0039] In this embodiment, the position sensor is constituted by a travel switch or a proximity switch arranged on the mobile material cart.

[0040] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0041] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0042] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A calcining furnace charging device for carbon calcination, comprising a feeding belt conveyor for conveying materials from back to front and a mobile material car moving forward and backward along the belt conveyor, characterized in that: A pushing bracket is arranged on the front side of the mobile material cart, and a lifting bracket which can be lifted up and down is arranged at the bottom of the pushing bracket, a pushing plate with a hinge axis extending along the left and right directions is hinged on the lifting bracket, and a pushing plate driving mechanism for driving the pushing plate to adjust the pitch angle is arranged between the lifting bracket and the pushing plate, and a telescopic rod with a length extending along the front and back directions is also arranged on the lifting bracket, the telescopic rod is located on the upper side of the pushing plate, the front end of the telescopic rod is connected to the lifting bracket, and the rear end of the telescopic rod is provided with a clearing rod for clearing the discharge port of the mobile material cart when the lifting bracket moves up and down.

2. The calcining furnace charging device according to claim 1, characterized in that: The calcining furnace charging device also includes a material level meter for detecting the height of the material pile at each material dropping position.

3. The calcining furnace charging device according to claim 2, characterized in that: The material level meter is a passive nuclear material level meter.

4. The calcining furnace charging device according to claim 3, characterized in that: The material level meter corresponding to each material dropping position is arranged on the furnace wall of the calcining furnace.

5. The calcining furnace charging device according to claim 1, characterized in that: A position sensor is arranged on the mobile material cart, and the position sensor is composed of a travel switch or a proximity switch arranged on the mobile material cart.

6. The calcining furnace charging device according to claim 1, characterized in that: The push plate driving mechanism is a push plate pitch angle adjustment cylinder arranged between the lifting bracket and the push plate.

7. The calcining furnace charging device according to claim 1, characterized in that: The front end of the telescopic rod is hingedly connected to the lifting bracket, the hinge axis of the telescopic rod is extended in the left and right directions, and a telescopic rod adjustment mechanism for driving the telescopic rod to rotate and adjust is arranged between the lifting bracket and the telescopic rod.

8. The calcining furnace charging device according to claim 7, characterized in that: The telescopic rod adjusting mechanism is a telescopic rod adjusting cylinder arranged between the lifting bracket and the telescopic rod.

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