Dry quenching coke tank bottom gate limiting signal loss processing device

Abstract

The utility model discloses a dry quenching coke tank bottom gate limiting signal loss processing device which comprises a limiting device and a coke tank bottom gate support, and the limiting device comprises a transmission rod, a guide sleeve, a lever, a shaft seat, a balance weight, an induction piece and an induction switch. Due to the arrangement of the coke tank bottom gate support device, bending deformation of the coke tank bottom gate support caused by sudden strong acting force of the coke tank bottom gate support and the transmission rod can be avoided, and the service life of the coke tank bottom gate support is prolonged. Meanwhile, the situation that signal interruption occurs in the coke discharging process and coke discharging is affected due to the fact that the coke tank bottom gate support cannot make contact with the transmission rod due to bending deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dry quenching in the coking industry, and in particular to a device for processing loss of limit signal of a gate at the bottom of a dry quenching coke tank. Background Art

[0002] There are two mature coke quenching methods for coking enterprises: wet quenching and dry quenching. In wet quenching, water is used to extinguish the red coke in the quenching tower. In dry quenching, the red coke is pushed into the coke tank, lifted to the top of the dry quenching furnace by a hoist, and placed in the dry quenching furnace for reverse contact with nitrogen. After the coke temperature is reduced, it is discharged from the dry quenching furnace. The nitrogen is recycled after passing through the primary dust removal, boiler, and secondary dust removal.

[0003] The red coke loading device for dry coke quenching adopts a sufficiently upper and lower split hopper, the upper hopper is fixed on the platform, and the lower hopper reciprocates with the furnace cover. The upper part of the split hopper is provided with a coke tank bottom gate limit signal transmission device to record the number of coke ovens loaded, and also serves as an auxiliary limit for the descent of the coke tank. Patent CN202021569418.1 discloses a detection structure for the bottom gate signal of a dry coke quenching loading device, including a loading device trolley and a loading device, a counterweight arm is hinged on one side of the upper part of the loading device, and a limit opening switch and a limit closing switch are installed on the top surface of the side of the running wheel of the loading device trolley, and a vertically arranged connecting rod is hinged on the counterweight arm, and the lower end of the connecting rod is respectively linked to the limit opening switch and the limit closing switch. The utility model moves the limit switch to the loading device trolley, which can prevent the magnetic switch from being damaged by the collision of the coke tank, improve the operability of maintenance, and ensure stable production. However, in production practice, the connecting rod of the device is prone to deformation during operation, resulting in instability of the entire structure. Sometimes the bottom gate signal cannot be received, which directly affects the normal coking operation of the dry quenching system.

[0004] Therefore, stabilizing the CDQ operation structure and reducing signal loss are technical issues that those skilled in the art need to solve. Utility Model Content

[0005] The utility model aims to provide a device for processing the loss of limit signal of the bottom gate of a dry coke quenching tank, so as to solve the problem that the detection structure is not stable enough in the production process, the bottom gate signal cannot be received, and the operation of the dry coke quenching is affected.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A device for processing loss of limit signal of coke tank bottom gate for dry quenching, the device comprising a limit device and a coke tank bottom gate bracket, the limit device comprising a transmission rod, a guide sleeve, a lever, an axle seat, a counterweight, an induction sheet and an induction switch;

[0008] The guide sleeve is installed on the top of the limiting device, the transmission rod is inserted into the guide sleeve, and the transmission rod and the guide sleeve are axially rotating and transmittingly connected;

[0009] One end of the lever is connected to the bottom end of the transmission rod, one end of the lever is connected to the counterweight, the lever is hinged to the shaft seat, and the shaft seat is fixedly installed at the bottom of the limiting device;

[0010] The connecting rod is provided with an induction sheet, and the side wall of the limit device close to the induction sheet is provided with a slot-shaped induction switch corresponding to the induction sheet;

[0011] An elastic component is welded to the lower end of the coke tank bottom gate bracket.

[0012] Furthermore, the coke tank bottom gate bracket is in an "L" shape.

[0013] Furthermore, the elastic component is a spring.

[0014] Furthermore, the coke tank bottom gate limit signal loss processing device also includes a PLC control system.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model provides a device for processing the limit signal loss of the coke tank bottom gate of a dry quenching coke drum. The device sets the coke tank bottom gate bracket into an "L" shape so that the coke tank bottom gate bracket can be more firmly fixed on the outer wall of the red coke tank. At the same time, a spring is welded at the lower end of the coke tank bottom gate bracket, which can prevent the coke tank bottom gate bracket and the transmission rod from bending and deforming due to a sudden strong force, thereby extending the service life of the coke tank bottom gate bracket and at the same time avoiding the coke tank bottom gate bracket from being unable to contact the transmission rod due to the bending deformation of the coke tank bottom gate bracket, resulting in signal interruption in the coke release process and affecting the coke release.

[0017] 2. The utility model provides a device for processing the loss of limit signal of the bottom gate of the dry quenching coke tank. The whole device is simple, low in investment cost, and easy to promote and use in coking plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a device for processing loss of limit signal of the bottom gate of a dry quenching coke tank.

[0019] Among them: 1. L-shaped bracket of the coke tank bottom gate; 2. Spring; 3. Transmission rod; 4. Guide sleeve; 5. Lever; 6. Axle seat; 7. Induction switch; 8. Induction plate; 9. Counterweight. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0021] Generally, the dry coke quenching equipment system is mainly composed of a red coke tank, a coke tank loading device, a dry coke quenching furnace and corresponding dust removal and gas circulation devices. The working process is generally as follows: the red coke tank filled with red coke is moved to the top of the coke tank loading device under the action of the elevator, and the red coke in the red coke tank is put into the coke tank loading device according to the instructions. The coke tank loading device is generally located at the top of the dry quenching furnace, thereby finally completing the purpose of loading the red coke into the dry quenching furnace.

[0022] Example 1

[0023] This embodiment provides a device for processing the loss of limit signal of the bottom gate of a dry quenching coke tank, such as Figure 1 As shown, the coke tank bottom gate limit signal loss processing device includes a limit device and a coke tank bottom gate bracket 1, and the limit device includes a transmission rod 3, a guide sleeve 4, a lever 5, an axle seat 6, a counterweight 9, an induction sheet 8 and a slot-type induction switch 7.

[0024] The guide sleeve 4 is installed on the top of the limiting device, the transmission rod 3 is inserted into the guide sleeve 4, and the transmission rod 3 and the guide sleeve 4 are axially rotatingly connected.

[0025] One end of the lever 5 is connected to the bottom of the transmission rod 3, and the other end of the lever 5 is connected to the counterweight 9. The lever 5 is fixedly connected to the shaft seat 6 with bolts, and the shaft seat 6 is fixedly installed at the bottom of the limiting device.

[0026] A sensing sheet 8 is also provided on the side with the counterweight 9, and the counterweight 9 and the sensing sheet 8 are connected by a cross bar, and the counterweight 9 and the sensing sheet 8 are respectively located at the two ends of the cross bar, and a slot-type sensing switch 7 corresponding to the sensing sheet 8 is provided on the side wall of the limit device close to the sensing sheet 8.

[0027] An elastic component 2 is welded to the lower end of the coke tank bottom gate bracket 1, and the elastic component 2 is a spring. The coke tank bottom gate bracket 1 is symmetrically arranged on the outer wall of the red coke tank, and the transmission rod 3 and guide sleeve 4 corresponding to the coke tank bottom gate bracket 1 are also symmetrically installed on both sides of the coke tank loading device entrance. The coke tank bottom gate bracket 1 is "L" shaped, and the coke tank bottom gate limit signal loss processing device also includes a PLC control system.

[0028] Working principle of the coke tank bottom gate limit signal loss processing device:

[0029] After the red coke tank moves to the top of the coke tank loading device, the bottom gate of the red coke tank is gradually opened to release the red coke. At the same time, the "L"-shaped coke tank bottom gate bracket 1 that descends synchronously with it also moves to the top of the transmission rod 3. Figure 1As shown, the gate bracket 1 at the bottom of the coke tank presses the transmission rod 3 and the guide sleeve 4 to move downward. This downward pressure causes the other end of the lever 5 to drive the induction plate 8 to move. When the gate opening at the bottom of the red coke tank reaches the maximum, the induction plate 8 enters the induction area of ​​the slot-type induction switch 7 and uploads the electrical signal to the central control room. At this time, the PLC system believes that the gate at the bottom of the red coke tank is fully opened and automatically performs coke loading timing. After the set time is reached, the red coke tank finishes releasing coke, the hoist lifts the red coke tank upward, and the gate bracket 1 at the bottom of the red coke tank moves upward synchronously. The downward pressure on the transmission rod 3 disappears, and the transmission rod 3 returns to its position driven by the counterweight 9. The induction plate 8 descends along with the side of the lever 5 provided with the counterweight 9, and leaves the induction area of ​​the slot-type switch 7. At this time, the PLC system determines that the gate at the bottom of the red coke tank is fully closed, and the coke release operation is completed.

[0030] During this process, a spring is welded at the lower end of the gate bracket 1 at the bottom of the coke tank. During the coke release process, the spring can offset the reaction force between the spring and the transmission rod 3, protecting the gate bracket 1 at the bottom of the coke tank from being deformed by the top, thereby preventing the gate bracket 1 at the bottom of the coke tank from being unable to touch the transmission rod 3 due to deformation, thereby affecting the accuracy of the subsequent operating system and causing coke release errors.

[0031] It should be pointed out that the above embodiments are only for illustrating the technical concept and features of the utility model, and the upper, lower, one side and one end described therein are all corresponding to the drawings of the utility model, and are not used to limit specific contents. The purpose is to enable people familiar with this technology to understand the contents of the utility model and implement them accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for processing the loss of limit signal of the bottom gate of a dry quenching coke tank, characterized in that: The coke tank bottom gate limit signal loss processing device comprises a limit device and a coke tank bottom gate bracket (1), wherein the limit device comprises a transmission rod (3), a guide sleeve (4), a lever (5), an axle seat (6), a counterweight (9), an induction sheet (8) and an induction switch (7); The guide sleeve (4) is installed on the top of the limiting device, the transmission rod (3) is inserted into the guide sleeve (4), and the transmission rod (3) and the guide sleeve (4) are connected in axial rotation transmission; One end of the lever (5) is connected to the bottom of the transmission rod (3), the other end of the lever (5) is connected to the counterweight (9), the lever (5) is hinged to the shaft seat (6), and the shaft seat (6) is fixedly mounted on the bottom of the limiting device; A sensing sheet (8) is also provided on the side where the counterweight (9) is provided, and a slot-shaped sensing switch (7) corresponding to the sensing sheet (8) is provided on the side wall of the limit device close to the sensing sheet (8); An elastic component (2) is welded to the lower end of the coke tank bottom gate bracket (1).

2. The device for processing the loss of limit signal of the bottom gate of the dry quenching coke tank according to claim 1 is characterized in that: The coke tank bottom gate bracket (1) is in an "L" shape.

3. The device for processing the loss of limit signal of the bottom gate of the dry quenching coke tank according to claim 1 is characterized in that: The elastic component is a spring.

4. The device for processing the loss of limit signal of the bottom gate of the dry quenching coke tank according to claim 1 is characterized in that: The coke tank bottom gate limit signal loss processing device also includes a PLC control system.

Images