Automatic slurry pouring sealing system of coke oven

Abstract

The utility model discloses a coke oven automatic slurry pouring sealing system, which comprises a slurry making system, a loading vehicle, a slurry control system and a slurry pouring system, the slurry making system comprises a slurry making tank and a first slurry conveying pipe, the first slurry conveying pipe is connected with the lower end of the slurry making tank, and the slurry pouring system is arranged on the loading vehicle and can move along with the loading vehicle. The slurry pouring system comprises a slurry buffer tank and a grouting nozzle, the grouting nozzle is connected with the lower end of the slurry buffer tank, the slurry control system comprises a sensing device and a control mainboard, slurry signals sensed by the sensing device are transmitted to the control mainboard, and the control mainboard controls the sealing system to discharge slurry. Through the sealing system, the slurrying tank is not limited by height and space and can be arranged at any position, and through the automatic slurry control system, pipeline butt joint and the slurry discharging amount can be accurately controlled, and the problems of slurry leakage, overflowing or insufficient grouting are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coke oven steelmaking, especially relates to a coke oven automatic grouting sealing system. BACKGROUND

[0002] The current existing coke oven coal feeding hole sleeve structure is a simple cover seat structure, which is composed of a coal feeding hole cover and a coal feeding hole seat. In order to resist high temperature, the coal feeding hole sleeve is made of metal. Therefore, the coal feeding hole sleeve is prone to cause temperature and energy loss. At the same time, the coal feeding hole sleeve made of metal structure is not easy to seal, which leads to the leakage of sulfur dioxide and other pollution gases, causing environmental pollution. Therefore, grouting sealing is needed between the hole cover and the hole seat.

[0003] In the existing grouting sealing system, the pulp preparation and pulp conveying equipment adopts gravity flow to convey the pulp to the grouting tank. The grouting tank discharges the pulp into the sealing groove through gravity. Therefore, the spatial position of the pulp preparation tank is limited and can only be set above the coke oven or at the same height, which brings many inconveniences to the installation and debugging of the system. SUMMARY

[0004] To solve the problem of limited spatial position of the pulp preparation tank, the utility model discloses a coke oven automatic grouting sealing system. The pulp preparation tank can be placed at any position relative to the coke oven and is not limited by height and space. The system can automatically control the storage and grouting of pulp and realize automatic control of grouting sealing.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows: a coke oven automatic grouting sealing system, which comprises a pulp preparation system, a loading vehicle, a pulp control system and a grouting system. The pulp preparation system comprises a pulp preparation tank and a first pulp conveying pipe. The first pulp conveying pipe is connected to the lower end of the pulp preparation tank. The grouting system is arranged on the loading vehicle and can move with the loading vehicle. The grouting system comprises a pulp buffer tank and a grouting nozzle. The grouting nozzle is connected to the lower end of the pulp buffer tank. The pulp control system comprises a sensing device and a control mainboard. The sensing device is signal connected to the control mainboard. The pulp signal sensed by the sensing device is transmitted to the control mainboard. The control mainboard controls the pulp discharge of the sealing system.

[0006] Further, a first on-off valve is arranged on the first pulp conveying pipe to control the pulp discharge of the pulp preparation tank.

[0007] The pulp buffer tank is provided with a pulp inlet to receive the pulp discharged from the first pulp conveying pipe into the pulp buffer tank.

[0008] Further, the grouting nozzle is connected to the lower end of the pulp buffer tank through a second pulp conveying pipe. A second on-off valve is arranged on the second pulp conveying pipe.

[0009] Further, the slurry buffer tank is arranged at a position higher than the coke oven cover, and under the action of gravity, the slurry in the slurry buffer tank can be delivered into the slurry groove between the coke oven cover and the coke oven.

[0010] Further, the sensing device comprises a first sensor, a second sensor and a third sensor, the first sensor is arranged at the outlet end of the first slurry delivery pipe and is used for sensing the relative position between the outlet of the first slurry delivery pipe and the slurry inlet, the second sensor is arranged in the slurry buffer tank and is used for sensing the slurry level in the slurry buffer tank, and the third sensor is arranged at the upper end of the coke oven and is used for sensing the relative position between the grouting nozzle and the slurry groove.

[0011] Further, the control mainboard is connected with the first switch valve and the second switch valve and is used for controlling the on-off of the first switch valve and the second switch valve.

[0012] Further, the purging device is arranged, and the purging device comprises a compressor and a ventilation pipeline, and the ventilation pipeline is connected with the preset air inlet of the second slurry delivery pipe.

[0013] Further, the air inlet is arranged at the side of the second switch valve away from the slurry buffer tank, and the air inlet is further provided with a sealable sealing device and is used for sealing the air inlet.

[0014] In particular, a plurality of grouting systems can be arranged on one loading vehicle, and the loading vehicle can be further provided with a coal bunker, so that the loading and transportation of coal and the grouting system can be simultaneously realized.

[0015] The present application has the following beneficial effects:

[0016] 1. The slurry buffer tank is used for secondary slurry storage, and the slurry buffer tank is arranged on the movable loading vehicle, the prepared slurry in the slurry preparation tank is delivered into the slurry buffer tank through gravity or a power device, and then the slurry in the slurry buffer tank is delivered into the slurry groove to be sealed, so that the slurry preparation tank can be arranged at any position relative to the coke oven, and the slurry preparation tank does not need to be arranged at a position higher than the coke oven, so that the arrangement of the slurry preparation tank is more flexible and is not limited by height and space.

[0017] 2. The slurry control system is used for realizing automatic connection and slurry pouring, so that the mud leakage and splashing caused by the poor connection position of the pipeline and the inaccurate slurry pouring amount control can be reduced, the pollution of the coal loading vehicle can be reduced, the personnel cost can be reduced, and the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows, the accompanying drawings are used to provide further understanding of the present application, and constitute a part of the description, and are used to explain the embodiments of the present application together with the embodiments of the present application, and do not constitute the limitation of the present application.For those skilled in the art, other drawings can also be obtained without creative labor on the premise of the accompanying drawings.

[0019] Figure 1 It is a structure schematic diagram of the pulp casting system of the present application.

[0020] Figure 2 It is a structure schematic diagram of the pulp casting system of the present application.

[0021] Figure 3 It is a control system schematic diagram of the present application.

[0022] Figure 4 It is a pulp tank schematic diagram of the present application.

[0023] Figure 5 It is another direction structure schematic diagram of the pulp tank of the present application.

[0024] Among them: 100, pulp making system; 110, pulp making tank; 120, first pulp conveying pipe; 121, first switch valve; 122, first pulp conveying pipe pulp outlet; 200, loading vehicle; 300, pulp casting system; 310, pulp buffer tank; 311, pulp inlet; 321, second pulp conveying pipe; 322, second switch valve; 323, grouting nozzle; 410, furnace body; 420, furnace cover; 430, pulp tank. DETAILED DESCRIPTION

[0025] The accompanying drawings needed to be used in the description of the embodiments of the present application will be combined as follows. Figures 1 to 5 The technical solutions in the embodiments of the present application are described clearly and completely, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Refer to Figure 1 and Figure 2As shown, the utility model discloses an embodiment, including pulping system, loading car, slurry control system and grouting system, and pulping system includes pulping jar and first slurry pipe, and first slurry pipe is connected pulping jar lower extreme, and first slurry pipe is provided with first switch valve, and grouting system includes slurry buffer tank, second slurry pipe, second switch valve and grouting nozzle, and second slurry pipe one end is connected slurry buffer tank lower extreme, and one end is connected grouting nozzle, and second switch valve is set up on second slurry pipe, and slurry buffer tank is set up on loading car, and can move with loading car.

[0027] Slurry control system includes inductive device and control mainboard, and inductive device includes the first inductor that sets up in the first slurry pipe export end, the second inductor that sets up in the slurry buffer tank, the third inductor that sets up in coke oven upper end, and inductive device is connected with control mainboard through signal, and inductive device will sense the slurry signal transmission to control mainboard, and control mainboard controls the on-off of first switch valve and second switch valve.

[0028] Slurry buffer tank top is provided with slurry inlet, after aligning slurry inlet with first slurry pipe outflow port, receives the slurry that pulping jar exported.

[0029] The position of slurry buffer tank bottom is higher than the position of coke oven cover, under the action of gravity, the slurry in slurry buffer tank can be transported to the slurry groove between the cover of coke oven and the coke oven body.

[0030] Also be equipped with purging device, and purging device is used compressed air and is swept, and compressed air is transported through compressor and ventilation pipeline, and also can be transported compressed air through compressed air storage tank and connect ventilation pipeline.

[0031] The air inlet is set up on the second slurry pipe, and the air inlet is set up on the side of the second switch valve away from the slurry buffer tank, and the sealing device is set up on the air inlet, and the sealing device is movably connected, and is used for sealing the air inlet.

[0032] The ventilation pipeline of purging device is matched with the air inlet on the second slurry pipe, when needing to purge, open the sealing device, connect the air inlet with the ventilation pipeline, and the interior of the second slurry pipe can be purged, when needing to grout, seal the air inlet with the sealing device, prevent the slurry from overflowing from the air inlet.

[0033] The specific operation process of the novel embodiment includes a slurry receiving process, a grouting process and a blowing process. The slurry receiving process is that the slurry preparation tank is arranged in a separate slurry mixing chamber, and the height is not limited. When the slurry preparation is completed, the loading vehicle moves to the side of the slurry preparation tank. When the first sensor senses that the slurry inlet of the slurry buffer tank and the slurry outlet of the first slurry conveying pipe are aligned, an alignment signal is fed back to the control mainboard. The control mainboard controls the first switch valve to open to start slurry pouring. When the second sensor in the slurry buffer tank senses that the slurry has been stored full, a signal is fed back to the control mainboard. The control mainboard controls the first switch valve to close to stop slurry pouring. At this time, the slurry receiving is completed.

[0034] The grouting process is that after the slurry receiving is completed, the loading vehicle drives to the side of the coke oven for standby. At this time, the bottom position of the slurry buffer tank on the loading vehicle is higher than the oven cover. When the coke oven carbonizing is completed, the cover machine resets the oven cover on the oven body to form a slurry groove between the oven cover and the oven body. The grouting nozzle is moved to the slurry groove position. When the third sensor senses that the grouting nozzle and the slurry groove are aligned, a signal is fed back to the control mainboard. The control mainboard controls the second switch valve to open to pour slurry. The slurry pouring time is preset according to the volume of the slurry groove and the slurry pouring flow rate. When the preset slurry pouring time is reached, the control mainboard automatically controls the second switch valve to close to stop slurry pouring. At this time, the slurry flows in the slurry groove and fills the slurry groove.

[0035] The blowing process is that after the second switch valve is closed, the blowing device is connected to the second slurry conveying pipe air inlet to blow out the residual slurry in the second slurry conveying pipe. The pressure of the compressed air of the blowing device is controlled through the pressure reducing valve to prevent the slurry from splashing during blowing. When the maintenance or the coal car stops running for a period of time, and there is a lot of residual material in the grouting tank, before restarting the grouting system, the system executes an automatic emergency back blowing command to blow the slurry deposited between the slurry buffer tank and the second switch valve into the slurry buffer tank, so as to ensure that the pipeline between the slurry buffer tank and the second switch valve is unobstructed.

[0036] Although the preferred embodiment of the present application is described above in combination with the drawings, the present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and are not limiting. Those skilled in the art can make many specific changes under the guidance of the present application without departing from the purpose of the application and the scope protected by the claims. These are all within the protection scope of the present application.

Claims

1. An automatic grouting and sealing system for coke ovens, characterized in that: The system includes a pulping system, a loading vehicle, a slurry control system, and a slurry pouring system. The pulping system includes a pulping tank and a first slurry delivery pipe connected to the lower end of the pulping tank. The slurry pouring system is mounted on the loading vehicle and can move with it. The slurry pouring system includes a slurry buffer tank and a slurry nozzle connected to the lower end of the slurry buffer tank. The slurry control system includes a sensing device and a control mainboard. The sensing device is signal-connected to the control mainboard, and the slurry signal sensed by the sensing device is transmitted to the control mainboard. The control mainboard controls the sealing system to release slurry.

2. The automatic grouting and sealing system for coke ovens according to claim 1, characterized in that: The first slurry delivery pipe is equipped with a first switch valve for controlling the discharge of slurry from the slurry preparation tank; The slurry buffer tank is provided with a slurry inlet for receiving slurry discharged from the first slurry delivery pipe into the slurry buffer tank.

3. The automatic grouting and sealing system for coke ovens according to claim 2, characterized in that: The grouting nozzle is connected to the lower end of the grout buffer tank through a second grout delivery pipe, and a second switching valve is installed on the second grout delivery pipe.

4. The automatic grouting and sealing system for coke ovens according to claim 3, characterized in that: The bottom of the slurry buffer tank is higher than the coke oven cover. Under the action of gravity, the slurry in the slurry buffer tank can be transported to the slurry trough between the coke oven cover and the coke oven.

5. The automatic grouting and sealing system for coke ovens according to claim 4, characterized in that: The sensing device includes a first sensor, a second sensor, and a third sensor. The first sensor is located at the outlet end of the first grouting pipe and is used to sense the relative position between the outlet of the first grouting pipe and the grout inlet. The second sensor is located inside the grout buffer tank and is used to sense the grout level in the grout buffer tank. The third sensor is located at the upper end of the coke oven and is used to sense the relative position between the grouting nozzle and the grout trough.

6. The automatic grouting and sealing system for coke ovens according to claim 5, characterized in that: The control board is connected to the first switching valve and the second switching valve, and is used to control the on / off state of the first switching valve and the second switching valve.

7. The automatic grouting and sealing system for coke ovens according to claim 6, characterized in that: It is also equipped with a purging device, which includes a compressor and a ventilation duct, and the ventilation duct is connected to a pre-set air inlet on the second slurry delivery pipe.

8. The automatic grouting and sealing system for coke ovens according to claim 7, characterized in that: The air inlet is located on the side of the second switch valve away from the slurry buffer tank, and the air inlet is also equipped with a movably connected sealing device for sealing the air inlet.

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