Coaling system of box-type coke oven

Abstract

The embodiment of the utility model provides a coaling system of a box-type coke oven, which comprises a plurality of belt conveyors, a clean coal bunker, a crusher chamber, a coal cake preparation workshop, a transport vehicle and the box-type coke oven, the feeding end of the first belt conveyor is arranged at the position of a discharging device of a coal washing workshop, the discharging end of the first belt conveyor is arranged at the feeding port of an automatic coal storage device, and the discharging end of the first belt conveyor is arranged at the discharging port of the automatic coal storage device. A discharge port of the automatic coal storage device is aligned with a feed port of the automatic coal blending device; the feeding end of the second belt conveyor is arranged at the discharging port of the automatic coal blending device, and the discharging end of the second belt conveyor is arranged at the feeding port of the crusher; the feeding end of the third belt conveyor is arranged at the discharging port of the crusher, the discharging end of the third belt conveyor is arranged at the feeding port of the coal press, and the discharging port of the coal press is aligned with the feeding port of the stacker crane; and the transport vehicle is used for transporting the clean coal of the stacker crane to the box-type coke oven for coking. And the automation degree of the box-type coke oven is improved, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, in particular to a coal feeding system of a box-type coke oven. Background Art

[0002] Coking is an important process in the coal industry. Generally, coal is carbonized in a coking oven at high temperature to form coke. The box coke oven is a special type of coking oven. At present, in many cases, coal is still manually loaded onto vehicles, transported by vehicles, and then manually unloaded to various nodes. For example, if the coal needs to be crushed, it is manually unloaded to the crusher room and finally sent to the box coke oven for coking. It is understandable that this manual method currently makes the production efficiency low. Utility Model Content

[0003] The purpose of the embodiment of the utility model is to provide a coal loading system for a box-type coke oven to improve the automation level of the box-type coke oven and thus improve production efficiency. The specific technical solution is as follows:

[0004] A coal loading system for a box-type coke oven, comprising:

[0005] A plurality of belt conveyors, a clean coal bunker, a crusher room, a coal cake preparation workshop, a transport vehicle and a box coke oven, wherein the plurality of belt conveyors include a first belt conveyor, a second belt conveyor and a third belt conveyor, the clean coal bunker includes an automatic coal storage device and an automatic coal blending device, the crusher room includes a crusher, and the coal cake preparation workshop includes a coal compactor and a stacker;

[0006] The loading end of the first belt conveyor is arranged at the unloader of the coal washing workshop, the unloading end of the first belt conveyor is arranged at the feeding port of the automatic coal storage device, and the discharging port of the automatic coal storage device is aligned with the feeding port of the automatic coal distribution device;

[0007] The loading end of the second belt conveyor is arranged at the discharge port of the automatic coal distribution device, and the unloading end of the second belt conveyor is arranged at the feeding port of the crusher;

[0008] The loading end of the third belt conveyor is arranged at the discharge port of the crusher, and the unloading end of the third belt conveyor is arranged at the feeding port of the coal press, and the discharge port of the coal press is aligned with the feeding port of the stacker;

[0009] The transport vehicle is used to transport the clean coal from the stacker to the box-type coke oven for coking.

[0010] Optionally, the automatic coal storage device includes a coal storage sub-bin, a loading port, a level meter, an air cannon and a hydraulic gate;

[0011] For each coal storage sub-bin, the coal storage sub-bin includes a loading port and a discharging port; the material level meter is arranged at the front end of the coal storage sub-bin, the air cannon is arranged in the middle of the coal storage sub-bin, and the hydraulic gate is arranged at the discharging port of the coal storage sub-bin.

[0012] Optionally, the clean coal bunker further comprises a plurality of first dischargers;

[0013] A plurality of first dischargers are arranged in sequence along the transmission direction of the first belt conveyor. For each first discharger, the first discharger includes a first baffle, which moves between a first position and a second position, wherein the first position is a position on the first belt conveyor, and the second position is a position away from the first belt conveyor. When the first baffle is located at the first position, the clean coal on the first belt conveyor is discharged to the loading port of the coal storage sub-bin.

[0014] Optionally, the automatic coal blending device is a feeder scale;

[0015] The discharge port of the coal storage sub-bin is aligned with the feed port of the feed scale, and the loading end of the second belt conveyor is arranged at the discharge port of the feed scale.

[0016] Optionally, the crusher chamber further comprises a first distributor;

[0017] The unloading end of the second belt conveyor is arranged at the feeding port of the first distributor, and the discharging port of the first distributor is aligned with the crusher.

[0018] Optionally, the briquettes preparation workshop further comprises a second distributor and a buffer bin;

[0019] The discharge end of the third belt conveyor is arranged at the inlet of the second material distributor, and the discharge port of the second material distributor is aligned with the inlet of the buffer bin;

[0020] The discharge port of the buffer bin is aligned with the feed port of the coal compressor.

[0021] Optionally, the briquettes preparation workshop further comprises a fourth belt conveyor and a second discharger;

[0022] The second discharger includes a second baffle, which moves between a third position and a fourth position, wherein the third position is a position on the fourth belt conveyor, and the fourth position is a position away from the fourth belt conveyor. When the second baffle is located at the third position, the clean coal on the fourth belt conveyor is discharged to the feed port of the buffer bin.

[0023] Optionally, the coal loading system further comprises a coal transfer station; the first belt conveyor comprises a fifth belt conveyor and a sixth belt conveyor;

[0024] The loading end of the fifth belt conveyor is arranged at the unloader of the coal washing workshop, and the unloading end of the fifth belt conveyor is arranged at the feeding port of the coal transfer station;

[0025] The loading end of the sixth belt conveyor is arranged at the discharge port of the coal transfer station, and the unloading end of the sixth belt conveyor is arranged at the feeding port of the first unloader.

[0026] Optionally, the conveyor belt of the fifth belt conveyor is also provided with an electronic belt scale.

[0027] Optionally, the first discharger is a plough-type discharger.

[0028] The control system for controlling coal loading in a box-type coke oven provided by the embodiment of the utility model is characterized in that the loading end of the first belt conveyor is arranged at the unloader of the coal washing workshop, the unloading end of the first belt conveyor is arranged at the feeding port of the automatic coal storage device, and the discharging port of the automatic coal storage device is aligned with the feeding port of the automatic coal distribution device; the loading end of the second belt conveyor is arranged at the discharging port of the automatic coal storage device, and the unloading end of the second belt conveyor is arranged at the feeding port of the crusher; the loading end of the third belt conveyor is arranged at the discharging port of the crusher, and the unloading end of the third belt conveyor is arranged at the feeding port of the coal press, and the discharging port of the coal press is aligned with the feeding port of the stacker; in this way, the clean coal of the stacker can be transported to the box-type coke oven for coking by a transport vehicle, which can improve the automation degree of the box-type coke oven and thus improve the production efficiency.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 A schematic diagram of the structure of a coal loading system for a box-type coke oven provided in an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of a coal loading system for a box-type coke oven provided by an embodiment of the utility model;

[0033] Figure 3A schematic structural diagram of a control system for controlling coal loading in a box-type coke oven provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the utility model.

[0035] Figure 1 A structural schematic diagram of a coal loading system for a box-type coke oven provided by an embodiment of the utility model, referring to Figure 1 The coal loading system of the box-type coke oven provided by the embodiment of the utility model may include:

[0036] A plurality of belt conveyors, a clean coal bunker 11, a crusher room 12, a coal cake preparation workshop 13, a transport vehicle 14 and a box coke oven 15, wherein the plurality of belt conveyors include a first belt conveyor 101, a second belt conveyor 102 and a third belt conveyor 103, the clean coal bunker 11 includes an automatic coal storage device 110 and an automatic coal blending device 111, the crusher room 12 includes a crusher 120, and the coal cake preparation workshop 13 includes a coal press 130 and a stacker 131;

[0037] The loading end of the first belt conveyor 101 is arranged at the unloader of the coal washing workshop 10, and the unloading end of the first belt conveyor 101 is arranged at the feeding port of the automatic coal storage device 110, and the discharging port of the automatic coal storage device 110 is aligned with the feeding port of the automatic coal distribution device 111;

[0038] The loading end of the second belt conveyor 102 is arranged at the discharge port of the automatic coal distribution device 111, and the unloading end of the second belt conveyor 102 is arranged at the feeding port of the crusher 120;

[0039] The loading end of the third belt conveyor 103 is arranged at the discharge port of the crusher 120, and the unloading end of the third belt conveyor 103 is arranged at the feeding port of the coal press 130, and the discharge port of the coal press 130 is aligned with the feeding port of the stacker 131;

[0040] The transport vehicle 14 is used to transport the clean coal from the stacker 131 to the box-type coke oven 15 for coking.

[0041] The belt conveyor mainly includes two end rollers and a closed conveyor belt tightly sleeved thereon. The two end rollers include a driving roller and a redirecting roller. The roller that drives the conveyor belt to rotate is called a driving roller, and the roller that only changes the direction of movement of the conveyor belt is called a redirecting roller. The driving roller is driven by an electric motor through a reducer, and the conveyor belt is dragged by the friction between the driving roller and the conveyor belt. The driving roller is generally installed at the discharge end to increase the traction force and facilitate dragging. Coal is fed from the feeding end of the belt conveyor, falls on the rotating conveyor belt, and is driven by the friction of the conveyor belt to be transported to the discharge end for discharge.

[0042] In this embodiment, the clean coal of the unloader of the coal washing workshop 10 is fed by the feeding end of the first belt conveyor 101, falls on the rotating conveyor belt, and is transported to the unloading end by the friction of the conveyor belt and discharged to the feeding port of the automatic coal storage device 110. The discharge port of the automatic coal storage device 110 is aligned with the feeding port of the automatic coal blending device 111. The clean coal of the automatic coal storage device 110 is transported to the automatic coal blending device 111 via the discharge port of the automatic coal storage device 110. The clean coal at the discharge port of the automatic coal blending device 111 is fed by the feeding end of the second belt conveyor 102, falls on the rotating conveyor belt, and is driven by the friction of the conveyor belt to be transported to the unloading end to be discharged to the feeding port of the automatic coal storage device 110. The conveyor belt friction drives the coal to be transported to the discharge end and discharged to the crusher 120. The crusher 120 crushes the clean coal. The crushed clean coal is fed by the feeding end of the third belt conveyor 103, falls on the rotating conveyor belt, and is driven by the conveyor belt friction to be transported to the discharge end and discharged to the feeding port of the coal press 130. The clean coal is pressed into coal cakes by the coal press 130 and then sent to the stacker 131. The stacker 131 then puts the coal cakes on the transport vehicle 14, and the transport vehicle 14 sends the coal cakes to the box coke oven 15 for coking. This can improve the automation of the box coke oven and thus improve production efficiency. In addition, it can also reduce labor costs.

[0043] In this embodiment, the transport vehicle 14 is manually driven, and the coal cakes on the stacker 131 are manually transported to the transport vehicle 14, and then the transport vehicle 14 is manually driven to deliver the coal cakes to the box coke oven 15 for coking. Alternatively, the transport vehicle 14, such as an automated guided vehicle (AGV), can be controlled to run to the stacker 131, the coal cakes on the stacker 131 are placed on the AGV, and the coal cakes are delivered to the box coke oven 15 for coking by the AGV.

[0044] In an optional embodiment, the automatic coal storage device 110 includes a coal storage sub-bin, a loading port, a level meter, an air cannon and a hydraulic gate;

[0045] For each coal storage sub-bin, the coal storage sub-bin includes a loading port and a discharging port; a material level meter is arranged at the front end of the coal storage sub-bin, an air cannon is arranged in the middle of the coal storage sub-bin, and a hydraulic gate is arranged at the discharging port of the coal storage sub-bin.

[0046] The level meter installed at the front end of the coal storage sub-bin is used to detect the changes in the height of the clean coal in the coal storage sub-bin in real time.

[0047] In this embodiment, the hydraulic gate can be controlled to be in an open state or a closed state by a control system. When the hydraulic gate is in an open state, the clean coal in the coal storage sub-bin is transmitted to the automatic configuration device 111 through the hydraulic gate, and when the hydraulic gate is in a closed state, the clean coal in the coal storage sub-bin cannot be transmitted to the automatic configuration device 111 through the hydraulic gate.

[0048] Air cannons are used to increase the power of clean coal transmission when the hydraulic gate is in the open state.

[0049] The clean coal bin 11 may also include multiple first dischargers, that is, the clean coal bin 11 includes multiple first dischargers, an automatic coal storage device 110 and an automatic coal blending device 111, and the automatic coal storage device 110 includes a coal storage sub-bin, a loading port, a level meter, an air cannon and a hydraulic gate.

[0050] Multiple first dischargers are arranged in sequence along the transmission direction of the first belt conveyor 101. For each first discharger, the first discharger includes a first baffle, which moves between a first position and a second position, wherein the first position is a position on the first belt conveyor, and the second position is a position away from the first belt conveyor. When the first baffle is located at the first position, the clean coal on the first belt conveyor is discharged to the loading port of the coal storage bin.

[0051] The unloader can unload coal from the belt conveyor through its baffle. To put it simply, when the baffle of the unloader rotates to a position on the belt conveyor, the rotation of the belt conveyor will be blocked by the baffle, and the clean coal on the belt conveyor enters the coal storage sub-bin; and when the baffle of the unloader rotates to a position away from the first belt conveyor, the rotation of the belt conveyor will not be blocked by the baffle, and the clean coal on the belt conveyor will not enter the coal storage sub-bin.

[0052] The first discharger may specifically be a plough-type discharger.

[0053] A coal storage sub-bin may also be referred to as a sub-bin or a silo. In the embodiment of the utility model, different coal storage sub-bins are used to load different types of clean coal. Specifically, according to actual needs, different types of clean coal can be loaded into different coal storage sub-bins, that is, into different sub-bins by controlling the first unloader. For example, when it is necessary to load clean coal of variety 1 into coal storage sub-bin 1, clean coal of variety 2 into coal storage sub-bin 2, and clean coal of variety 3 into coal storage sub-bin 3, three first unloaders may be set, namely unloader 1, unloader 2 and unloader 3; unloader 1, unloader 2 and unloader 3 are arranged in sequence along the transmission direction of the first belt conveyor 101. When the clean coal on the first belt conveyor 101 is clean coal of variety 1, unloader 1 may be controlled to be in the first position, so that the first belt conveyor 101 can be made to move along the transmission direction of the first belt conveyor 101. The clean coal on the conveyor 101 is unloaded at the loading port of the coal storage sub-bin 1; when the clean coal on the first belt conveyor 101 is type 2 clean coal, the unloader 2 can be controlled to be located at the first position, so that the clean coal on the first belt conveyor 101 can be unloaded at the loading port of the coal storage sub-bin 2, and when the clean coal on the first belt conveyor 101 is type 3 clean coal, the unloader 3 can be controlled to be located at the first position, so that the clean coal on the first belt conveyor 101 can be unloaded at the loading port of the coal storage sub-bin 3.

[0054] The automatic coal distribution device 111 may specifically be a feeder scale, the discharge port of the coal storage sub-bin is aligned with the feed port of the feeder scale, and the loading end of the second belt conveyor is arranged at the discharge port of the feeder scale.

[0055] One feeding scale corresponds to one coal storage sub-bin. One feeding scale can weigh the clean coal transported from a coal storage sub-bin. Because different coal storage sub-bins are used to load different types of clean coal, different types of clean coal can be obtained from different coal storage sub-bins. Moreover, the feeding scale can be used to weigh the required weight of different types of clean coal according to actual needs.

[0056] Furthermore, for a coal storage sub-bin, a hydraulic gate is arranged at the discharge port of the coal storage sub-bin, that is, the hydraulic gate can be controlled to be in an open state or a closed state. When the hydraulic gate is in an open state, the clean coal in the coal storage sub-bin is transferred to the feeding scale through the hydraulic gate, and when the hydraulic gate is in a closed state, the clean coal in the coal storage sub-bin cannot be transferred to the feeding scale through the hydraulic gate.

[0057] In actual use, the length of time the hydraulic gate is in the open state can be controlled and the weight can be weighed by the feed scale to achieve the configuration of different types of clean coal in proportion according to actual needs.

[0058] The feeding end of the second belt conveyor 102 is arranged at the discharge port of the feed scale, so that the clean coal of the feed scale can be transported to the crusher 120 in the downstream crusher chamber 12 through the second belt conveyor 102 .

[0059] In an optional embodiment, the crusher chamber 12 further includes a first distributor, that is, the crusher chamber 12 includes a first distributor and a plurality of crushers 120;

[0060] The unloading end of the second belt conveyor 102 is arranged at the feeding port of the first distributor, and the discharging port of the first distributor is aligned with the crusher 120 .

[0061] It can be understood that the first distributor distributes the clean coal transported by the second belt conveyor 102 to different crushers 120, and the clean coal is crushed by multiple crushers 120. Specifically, the first distributor can be a hydraulic distributor.

[0062] In an optional embodiment, the coal cake preparation workshop 13 further includes a second distributor and a buffer bin;

[0063] The discharge end of the third belt conveyor 103 is arranged at the inlet of the second material distributor, and the discharge port of the second material distributor is aligned with the inlet of the buffer bin;

[0064] The discharge port of the buffer bin is aligned with the feed port of the coal press 130 .

[0065] It can be understood that the clean coal transported by the third belt conveyor 103 is distributed to different buffer bins through the second distributor, and each buffer bin corresponds to a coal compressor 130 and a stacker 131. In this way, the clean coal transported by the third belt conveyor 103 is transported to the buffer bin via the second distributor, and the clean coal in the buffer bin is pressed into coal cakes by the coal compressor 130 and then sent to the stacker 131. The stacker 131 then puts the coal cakes on the transport vehicle 14, and the transport vehicle 14 sends the coal cakes to the box coke oven 15 for coking.

[0066] The second distributor may specifically be a hydraulic distributor.

[0067] In one possible implementation, the briquettes preparation workshop 13 further includes a fourth belt conveyor and a second discharger;

[0068] The second unloader includes a second baffle, which moves between a third position and a fourth position, wherein the third position is a position on the fourth belt conveyor, and the fourth position is a position away from the fourth belt conveyor. When the second baffle is located at the third position, the clean coal on the fourth belt conveyor is discharged to the feed port of the buffer bin.

[0069] It can be understood that, based on the above embodiment, in addition to the second distributor, a fourth belt conveyor and a second discharger are combined to distribute the clean coal transported by the third belt conveyor 103 to different buffer bins.

[0070] Among them, the second discharger can specifically be a plough-type discharger.

[0071] In an optional embodiment, the coal loading system further includes a coal transfer station; the first belt conveyor includes a fifth belt conveyor and a sixth belt conveyor;

[0072] The loading end of the fifth belt conveyor is arranged at the unloader of the coal washing workshop, and the unloading end of the fifth belt conveyor is arranged at the feeding port of the coal transfer station;

[0073] The loading end of the sixth belt conveyor is arranged at the discharge port of the coal transfer station, and the unloading end of the sixth belt conveyor is arranged at the feeding port of the first unloader.

[0074] The belt of the fifth belt conveyor may also be provided with an electronic belt scale. The electronic belt scale uses the lever principle, and a lever device is installed under the continuously running conveyor belt using the lever principle. The electronic belt scale is used to monitor the loading capacity of the fifth belt conveyor.

[0075] It can be understood that in this embodiment, the coal from the coal washing workshop 10 is not directly loaded into the clean coal bin 11, but passes through a coal transfer station. The coal from the coal washing workshop 10 is first transported to the coal transfer station via the fifth belt conveyor, and the clean coal in the coal transfer station is transported to the clean coal bin 11 via the sixth belt conveyor.

[0076] Specifically, the clean coal of the discharger of the coal washing workshop 10 is fed by the loading end of the fifth belt conveyor, falls on the rotating conveyor belt, and is driven by the friction of the conveyor belt to be transported to the unloading end and unloaded to the coal transfer station; the clean coal of the discharger of the coal transfer station is fed by the loading end of the sixth belt conveyor, falls on the rotating conveyor belt, and is driven by the friction of the conveyor belt to be transported to the unloading end and unloaded to the clean coal bin 11.

[0077] In one possible implementation, the clean coal of the unloader of the coal transfer station is fed into the unloader by the feeding end of the sixth belt conveyor, falls on the rotating conveyor belt, and is transported to the unloading end by the friction of the conveyor belt and discharged to the feeding port of the automatic coal storage device 110 in the clean coal bin 11. The discharge port of the automatic coal storage device 110 is aligned with the feeding port of the automatic coal blending device 111. The clean coal of the automatic coal storage device 110 is transported to the automatic coal blending device 111 via the discharge port of the automatic coal storage device 110. The clean coal at the discharge port of the automatic coal blending device 111 is fed into the unloader by the feeding end of the second belt conveyor 102. The coal is fed into the conveyor belt and falls on the rotating conveyor belt. It is driven by the friction of the conveyor belt to be transported to the unloading end and discharged to the crusher 120. The crusher 120 crushes the clean coal. The crushed clean coal is fed into the feeding end of the third belt conveyor 103 and falls on the rotating conveyor belt. It is driven by the friction of the conveyor belt to be transported to the unloading end and discharged to the feeding port of the coal compressor 130. The clean coal is pressed into coal cakes by the coal compressor 130 and then sent to the stacker 131. The stacker 131 puts the coal cakes on the transport vehicle 14, and the transport vehicle 14 sends the coal cakes to the box coke oven 15 for coking.

[0078] In another possible implementation, a plurality of first dischargers are arranged in sequence along the transmission direction of the sixth belt conveyor. For each first discharger, the first discharger includes a first baffle, which moves between a first position and a second position, wherein the first position is a position on the sixth belt conveyor, and the second position is a position away from the sixth belt conveyor. When the first baffle is located at the first position, the clean coal on the sixth belt conveyor is discharged to the loading port of the coal storage sub-bin. The clean coal of the discharger of the coal transfer station is fed from the loading end of the sixth belt conveyor, falls on the rotating conveyor belt, and is transported to the discharge end by the friction of the conveyor belt and discharged to the loading port of the coal storage sub-bin. The transportation process of the clean coal after entering the coal storage sub-bin is the same as the above embodiment, which will not be repeated here.

[0079] From the perspective of process control flow, with the operator's manual intervention as the segmentation point, the coal loading system provided in this embodiment may include three segments, such as Figure 2 As shown:

[0080] The first section is from the coal washing workshop 10 to the upper part of the clean coal bunker 11 (i.e., the automatic coal storage device 110);

[0081] The coal from the coal washing workshop 10 is transported to the clean coal bin 11 through the 1# belt conveyor, the coal transfer station 16 and the 2# belt conveyor. The automatic coal storage device 110 in the clean coal bin 11 includes several sub-bins (the above-mentioned coal storage sub-bins). Each sub-bin is loaded with different types of clean coal according to the coal blending demand by controlling the plow type unloader.

[0082] The second section is from the lower part of the clean coal bin 11 (i.e. the automatic coal blending device 111) to the secondary crusher chamber (i.e. the above-mentioned crusher chamber 12). The automatic coal blending device 111 blends different types of clean coal in proportion according to needs and then conveys them to the secondary crusher chamber through the 3# belt conveyor. The clean coal is crushed by the crusher 120 in the secondary crusher chamber.

[0083] The clean coal of the discharger of the coal washing workshop 10 is fed by the loading end of the fifth belt conveyor, falls on the rotating conveyor belt, and is transported to the unloading end by relying on the friction of the conveyor belt and unloaded to the coal transfer station; the clean coal of the discharger of the coal transfer station is fed by the loading end of the sixth belt conveyor, falls on the rotating conveyor belt, and is transported to the unloading end by relying on the friction of the conveyor belt and unloaded to the clean coal bin 11.

[0084] A plurality of plow dischargers 200 are arranged in sequence along the transmission direction of the 2# belt conveyor. For each plow discharger 200, the plow discharger 200 includes a baffle, which moves between a first position and a second position, wherein the first position is a position on the 2# belt conveyor, and the second position is a position away from the 2# belt conveyor. When the baffle is in the first position, the clean coal on the 2# belt conveyor is discharged to the loading port of the sub-bin. Specifically, the clean coal of the discharger of the coal transfer station is fed from the loading end of the 2# belt conveyor, falls on the rotating conveyor belt, and is transported to the discharge end by the friction of the conveyor belt and discharged to the loading port of the sub-bin.

[0085] For each sub-bin, a material level meter 201 is arranged at the front end of the sub-bin, an air cannon 202 is arranged in the middle of the sub-bin, a hydraulic gate 203 is arranged at the discharge port of the sub-bin, and the discharge port of the sub-bin is aligned with a feed scale 204 .

[0086] The clean coal from the feeding scale 204 is fed through the 3# belt conveyor. The unloading end of the 3# belt conveyor is arranged at the feeding port of the hydraulic distributor in the crusher room. The discharging port of the hydraulic distributor in the crusher room is aimed at the crusher 120. In this way, the hydraulic distributor in the crusher room distributes the clean coal transported by the 3# belt conveyor to multiple crushers 120 to crush the clean coal.

[0087] The third section, from the secondary crusher room to the briquettes preparation workshop 13;

[0088] The clean coal crushed for the second time by the crusher 120 is transported to the coal cake preparation workshop 13 through the 4# belt conveyor and the 5# belt conveyor. A plurality of buffer bins are arranged in the coal cake preparation workshop 13 .

[0089] The unloading end of the 5# belt conveyor is arranged at the feeding port of the hydraulic distributor in the coal cake preparation workshop 13, and the discharging port of the hydraulic distributor in the coal cake preparation workshop 13 is aligned with the feeding port of the buffer bin; the discharging port of the buffer bin is aligned with the feeding port of the coal compressor 130, and the discharging port of the coal compressor 130 is aligned with the feeding port of the stacker 131, and the clean coal of the stacker 131 is transported to the box coke oven 15 for coking by the transport vehicle 14.

[0090] Alternatively, the discharge end of the 5# belt conveyor is set at the inlet of the hydraulic distributor in the coal cake preparation workshop 13, and the loading end of the 6# belt conveyor is set at the discharge port of the hydraulic distributor in the coal cake preparation workshop 13. Multiple plow-type dischargers are arranged in sequence along the transportation direction of the 6# belt conveyor. The plow-type discharger includes a baffle, which moves between a third position and a fourth position, wherein the third position is a position on the 6# belt conveyor, and the fourth position is a position away from the 6# belt conveyor. When the baffle is in the third position, the clean coal on the 6# belt conveyor is discharged to the inlet of the buffer bin. The discharge port of the buffer bin is aligned with the inlet of the coal press 130, and the discharge port of the coal press 130 is aligned with the inlet of the stacker 131. The clean coal of the stacker 131 is transported to the box coke oven 15 for coking by the transport vehicle 14. In this way, the clean coal is loaded into different buffer bins through the cooperation of the hydraulic distributor, the 6# belt conveyor and the plow type unloader. The clean coal in each buffer bin is pressed into briquettes by the coal press 130 and then sent to the stacker 131, which then puts the briquettes on the transport vehicle 14 (such as a coal transport flatbed truck) and finally sent to the box coke oven 15 for coking.

[0091] In the embodiment of the utility model, the coal loading system may further include various meters, such as a thermometer, a hygrometer, etc., which may be connected to one or more of the components in the above embodiments. For example, the thermometer is connected to the first belt conveyor 101 to measure the temperature of the first belt conveyor 101. Specifically, various meters may be selected according to actual needs and connected to the components to be measured.

[0092] In addition, the coal loading system may also include a soft starter, a frequency converter, a motor protector, etc. The soft starter, the frequency converter, the motor protector, etc. may be respectively connected to one or more of the components in the above-mentioned embodiments. For example, the coal press 130 may be connected to a soft starter, and the soft starter may be used to control the start of the coal press 130. Specifically, the soft starter, the frequency converter, and the motor protector may be selected according to actual needs and connected to the components to be controlled or protected.

[0093] Based on the above-mentioned embodiment of the coal loading system of the box-type coke oven, the embodiment of the utility model further provides a control system for controlling the coal loading of the box-type coke oven.

[0094] The control system for controlling coal loading of a box-type coke oven provided by the embodiment of the utility model may include:

[0095] Host computer system and slave computer system;

[0096] The upper computer system is connected to the lower computer system;

[0097] The lower computer system is connected to the field equipment in the coal feeding system of the box-type coke oven.

[0098] The on-site equipment in the coal feeding system may include various electrical equipment, instrumentation equipment, etc., and may specifically include at least one of the following: belt conveyor, crusher, plow discharger, electronic belt scale, air cannon, hydraulic gate, distributor, material level meter, meter, soft starter, frequency converter, motor protector, feeder scale, coal press and stacker. The distributor may specifically be a hydraulic distributor, and the meter may include various meters, such as a thermometer, a hygrometer, etc.

[0099] In the embodiment of the utility model, the control system for controlling the coal loading of the box-type coke oven provided by the embodiment of the utility model is connected to the lower computer system through the upper computer system; the lower computer system is connected to the field equipment in the coal loading system of the box-type coke oven, so that the field equipment in the coal loading system of the box-type coke oven can be controlled, so that the automatic coal loading of the box-type coke oven can be realized.

[0100] The upper computer system can send control instructions to the lower computer system and control the field equipment in the coal loading system through the lower computer system.

[0101] In the control system provided by the embodiment of the utility model, the host computer system may include one or more industrial computers, which may also be referred to as special-purpose computers for industrial control systems. Their functions include serving as engineer stations or operator stations. The engineer station is responsible for establishing, editing, and modifying control programs and displaying screen configurations, while the operator station is responsible for monitoring system status and remotely operating field equipment in the coal loading system.

[0102] In the control system provided by the embodiment of the utility model, the lower computer system can adopt an industrial-grade PLC (Programmable Logic Controller) system or a DCS (Distributed Control System).

[0103] In an optional embodiment, an industry-specific communication protocol is used for data exchange between the host computer system and the slave computer system, and the transmission medium is an industry-specific cable or optical cable to ensure stable and reliable data transmission.

[0104] In an optional embodiment, the lower computer system may include a switch, and the lower computer system is connected to and communicates with the upper computer system via the switch.

[0105] The control system provided by the embodiment of the utility model may further include a gateway connected to the switch in the lower computer system.

[0106] The control system can also be configured with a gateway interface according to management requirements for the upper management system to collect production data, that is, the gateway is connected to the switch and the upper management system respectively.

[0107] The control system may also include a printer connected to the switch in the lower computer system. Specifically, the printer may be located in the upper computer system and is responsible for outputting paper reports.

[0108] In an optional embodiment, the lower computer system includes: a switch, at least one controller, and for each controller, the controller is connected to at least one I / O (Input / Output) module;

[0109] Therefore, the controller is connected to the switch, and the I / O module is connected to the field equipment in the coal loading system.

[0110] In the embodiment of the utility model, the controller may specifically be any device having a control function, for example, it may be a programmable logic controller (PLC), a central processing unit (CPU), etc.

[0111] I / O modules are divided into digital input (DI) modules, digital output (DO) modules, analog input (AI) modules, analog output (AO) modules and special function modules according to signal type. Specifically, the special function modules can be determined according to the signal type of the field equipment in the coal loading system.

[0112] In one example, the number of I / O points configured for the control system should be greater than the actual number of points required, leaving a spare margin to facilitate small-scale expansion of the system and compensate for operating losses.

[0113] Specifically, the lower computer system may further include an isolation module; the I / O module is connected to the isolation module, and the isolation module is connected to the field equipment in the coal loading system.

[0114] It can also be understood that the I / O module is connected to the field equipment in the coal loading system through the isolation module, and the isolation module may specifically include an isolator, a distributor and / or a relay, etc.

[0115] In an optional embodiment, the lower computer system includes: a switch, a controller, and a communication module connected to the controller;

[0116] Therefore, the controller is connected to the switch, and the communication module is connected to the field equipment in the coal loading system.

[0117] The communication module can be any functional module, interface, communication bus, etc.

[0118] In an optional embodiment, the lower computer system includes: a switch, a master station and at least one slave station connected to the master station, the master station is connected to the switch, and each slave station is connected to at least one field device in the coal loading system.

[0119] Specifically, the master station includes a controller and at least one communication module connected to the controller, the controller is connected to the switch, and the slave station includes a communication module and an I / O module;

[0120] The communication module in the master station is connected to the communication module in at least one slave station;

[0121] The I / O module in each slave station is connected to at least one field device in the coal loading system.

[0122] Each slave station may further include an isolation module, the I / O module of each slave station is connected to the isolation module of the slave station, and the isolation module of the slave station is connected to at least one field device in the coal loading system.

[0123] In an optional embodiment, the communication module in each slave station is connected to the communication module 800 in at least one other slave station.

[0124] In this embodiment, the communication modules of multiple slave stations can form a series relationship, so that not all the communication modules of the slave stations are connected to the communication module of the master station. In addition, the communication module of the slave station that is not connected to the communication module of the master station can transmit the information collected by itself to the communication module of the master station through the communication module of the slave station connected to it.

[0125] For example, there are 3 slave stations, the communication module of the first slave station is connected to the communication module of the master station, the communication module of the second slave station is connected to the communication module of the first slave station, and the communication module of the third slave station is connected to the communication module 800 of the third slave station.

[0126] The information collected by the third slave station can be first transmitted to the communication module of the second slave station, and the communication module of the second slave station then transmits the received information collected by the third slave station to the communication module of the first slave station, and the communication module of the first slave station then transmits the received information collected by the third slave station to the communication module of the master station.

[0127] Reference Figure 3 , the control system provided by the embodiment of the utility model includes: an upper computer system 30 and a lower computer system 31;

[0128] The host computer system 30 includes an industrial computer 301, a gateway 302, and a printer 303;

[0129] The lower computer system 31 includes: a switch 311, three controllers 312, multiple I / O modules 313, multiple communication modules 314 and multiple isolation modules, where the isolation modules are specifically isolators, distributors and / or relays.

[0130] The gateway 302 is used to collect production data from the superior management system, and the printer 303 is responsible for outputting paper reports.

[0131] The three controllers 312 are respectively connected to the switch 311 , and the switch 311 is also connected to the industrial computer 301 , the gateway 302 , and the printer 303 in the host computer system 30 .

[0132] A controller 312 and two communication modules 314 constitute a master station in the lower computer system 31. One communication module 314 in the master station is used to connect to the slave station; the other communication module 314 is connected to the field equipment 32 in the coal loading system. The field equipment 32 in the coal loading system here can specifically include: soft starter 329, frequency converter 330, motor protector 331.

[0133] Two controllers 312 are connected to multiple I / O modules 313, and each constitutes a substation, and each substation is connected to at least one field device 32 in the coal loading system. Specifically, multiple I / O modules 313 in a substation can be understood as a group of I / O modules 313, and a set of isolation modules is configured for a group of I / O modules 313. The group of I / O modules 313 is connected to the field device 32 in the coal loading system through the isolation module, wherein the isolation module is specifically an isolation / distributor, a relay. For example, a controller 312 is connected to multiple I / O modules 313 to constitute a coal distribution substation, and the coal distribution substation is connected to the feed scale 332 in the coal loading system; a controller 312 is connected to multiple I / O modules 313 to constitute a coal cake preparation substation, and the coal cake preparation substation is connected to the coal press 130 and the stacker 131 in the coal loading system.

[0134] The communication module 314 in the master station for connecting with the slave station can be connected to the communication module 314 in each slave station, and can also be connected to the communication modules 314 in some slave stations. For example, the communication module 314 in the master station for connecting with the slave station is only connected to the communication module 314 in one slave station, and the communication modules 314 of multiple slave stations form a series relationship. The slave station that is not connected to the communication module 314 of the master station can transmit the information it has collected to the communication module 314 of the master station through the communication module 314 of the slave station connected to it.

[0135] A communication module 314 and a plurality of I / O modules 313 constitute a slave station in the lower computer system 31, and each slave station is connected to at least one field device 32 in the coal loading system. Specifically, a plurality of I / O modules 313 in a slave station can be understood as a group of I / O modules 313, and a set of isolation modules is configured for a group of I / O modules 313, and the group of I / O modules 313 is connected to the field device 32 in the coal loading system through the isolation module. For example, it includes 3 slave stations, the I / O module 313 in one slave station 1 is connected to the belt conveyor 321 such as the first belt conveyor 101, the second belt conveyor 102, the third belt conveyor 103, etc., the crusher 120, and the plow type unloader 322 through the isolation module; the I / O module 313 in one slave station is connected to the electronic belt scale 323, the air cannon 324, and the hydraulic gate 325 through the isolation module; the I / O module 313 in one slave station is connected to the hydraulic distributor 326, the level meter 327, and the meter 328 through the isolation module.

[0136] It can be understood that the hardware composition of the control system provided in the embodiment of the utility model mainly includes a signal I / O module 313, a programmable logic controller and an industrial computer; the control system can be configured with corresponding software, which mainly includes a lower computer programming software and a host computer human-computer interaction configuration software.

[0137] The engineer establishes and compiles a control program that meets the process requirements in the host programming software of an engineer station, such as an industrial computer 301 in the host system 30, and after drawing and editing the operation screen in the configuration software, the engineer downloads the control program to the controller 312 and downloads the configuration screen to each operator station, such as another industrial computer 301 in the host system 30, so as to complete the monitoring, debugging, operation and maintenance of the entire control system.

[0138] Various types of equipment with remote monitoring, specifically one or more of the field equipment 32 in the coal-laying system, send I / O signals to the I / O module 313 via cables, and the controller 312 communicates with the I / O module 313 via the control system bus to achieve signal interaction with each device.

[0139] For a larger coal loading system in a factory area, the belt conveyors are longer and more numerous. Remote I / O stations can be set up in several suitable transfer stations and other places to collect and output control signals. The remote station exchanges data with the main station through the communication module 314 to save cables and stabilize signals. The remote station mentioned here is the slave station.

[0140] Some control devices such as soft starters, frequency converters, motor protectors, etc. can also communicate directly with the main station through the communication module 314 to achieve the purpose of collecting more device information and precise control. This control method should pay attention to the number of sites limited by the communication method to ensure communication quality.

[0141] The controller 312 may also use the communication module 314 as an interface to directly exchange data with special devices having a communication interface, such as a soft starter, a frequency converter, a motor protector, etc., through a communication cable.

[0142] In the embodiment of the utility model, the advanced automatic control process can be applied to the coal loading process of the box coke oven to reduce the labor burden, improve production efficiency and coke quality, and cooperate with the industrial monitoring system to ensure production safety.

[0143] In the process of using the control system provided by the embodiment of the utility model, a structured naming method is adopted for hardware numbering and software coding to avoid repeated numbering or coding, and to avoid the use of large serial numbering or coding that leads to disorganized device numbering and poor readability of control programs.

[0144] Furthermore, for systems with a large number of similar devices, such as the lower computer system 31, modular programming is used to compile different functional blocks with certain universality for different types of devices, making the program clear and easy to read, simplifying the compilation process, and facilitating system maintenance.

[0145] In the process of using the control system provided by the embodiment of the utility model, the equipment start and stop principle can be set.

[0146] Specifically, whether the device is started manually or automatically remotely, the following principles should be followed:

[0147] Equipment sound and light alarm: Equipment involving personal safety and important equipment should be given sound and light warnings before starting, such as belt conveyors.

[0148] Material line start-up: The equipment in front of the material line starts first, and after a certain delay, the equipment behind can be started, until the last equipment in the material line is started, the material line is started.

[0149] Material line stop: The equipment behind the material line stops first. After the material is cleared, the equipment in front can stop. The material line stops completely until the first equipment in the material line stops completely.

[0150] In the process of using the control system provided by the embodiment of the utility model, a process interlocking principle can also be set, wherein the process interlocking control principle takes personal safety, facility safety, material safety, etc. as a starting point for comprehensive consideration.

[0151] Process interlocking is the focus of process control and the bottom line of safety. Taking the process of the coal feeding system of the box coke oven as the core, from the perspective of personal safety, facility safety and control rationality, the following material line interlocking principles are formulated:

[0152] The equipment will stop immediately if it has a serious fault. For a minor fault, you can choose to only give an alarm without stopping or delay stopping according to needs, and set a soft emergency stop button in the upper computer operation screen according to the importance of the equipment.

[0153] If a device stops due to a malfunction or is manually stopped in an emergency, the devices in front of the material line where the faulty device is located will stop in sequence according to the material clearing time, and the devices behind the material line where the faulty device is located will stop immediately.

[0154] Filling is not allowed when the material level in the filling silo of the loading equipment is too high. When the material level in the filling silo of the loading equipment in operation reaches the high material level, the equipment will be stopped immediately.

[0155] Under normal circumstances, the silo is not completely emptied, except for situations such as replacing materials or equipment maintenance. Therefore, it is required that the unloading equipment does not unload when the material level is low, and the unloading equipment in operation stops unloading when the material in the silo drops to the low level.

[0156] For public auxiliary equipment, taking the dust removal pipe valve as an example, before starting the equipment that generates smoke and dust, the dust removal valve related to the equipment should be opened first, and then the equipment can be started after a certain delay. After the equipment stops, a certain delay is also required before the dust removal valve can be closed.

[0157] In addition, during the use of the control system provided by the embodiment of the utility model, the operation screen of the host computer system 30 is neat and uniform, the operation is smooth, and its display elements are easy to distinguish to prevent visual fatigue; the operation elements are reasonably arranged, and the conventional operation habits of the industry are fully considered. In addition, the host computer system 30, for example, can store and display system event records, alarm records, operation records, etc. through the industrial computer 301, which is convenient for system maintenance and process tracing.

[0158] The control system provided by the embodiment of the utility model can improve the level of automated control of the coal loading process of the box-type coke oven, reduce maintenance costs through centralized control, make the control process visual and centralized, so as to realize transparent management of the plant area and lay the foundation for intelligent control.

[0159] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A coal feeding system for a box-type coke oven, characterized in that: include: A plurality of belt conveyors, a clean coal bunker, a crusher room, a coal cake preparation workshop, a transport vehicle and a box coke oven, wherein the plurality of belt conveyors include a first belt conveyor, a second belt conveyor and a third belt conveyor, the clean coal bunker includes an automatic coal storage device and an automatic coal blending device, the crusher room includes a crusher, and the coal cake preparation workshop includes a coal compactor and a stacker; The loading end of the first belt conveyor is arranged at the unloader of the coal washing workshop, the unloading end of the first belt conveyor is arranged at the feeding port of the automatic coal storage device, and the discharging port of the automatic coal storage device is aligned with the feeding port of the automatic coal distribution device; The loading end of the second belt conveyor is arranged at the discharge port of the automatic coal distribution device, and the unloading end of the second belt conveyor is arranged at the feeding port of the crusher; The loading end of the third belt conveyor is arranged at the discharge port of the crusher, and the unloading end of the third belt conveyor is arranged at the feeding port of the coal press, and the discharge port of the coal press is aligned with the feeding port of the stacker; The transport vehicle is used to transport the clean coal from the stacker to the box-type coke oven for coking.

2. The coal loading system according to claim 1, characterized in that: The automatic coal storage device comprises a coal storage sub-bin, a loading port, a level meter, an air cannon and a hydraulic gate; For each coal storage sub-bin, the coal storage sub-bin includes a loading port and a discharging port; the material level meter is arranged at the front end of the coal storage sub-bin, the air cannon is arranged in the middle of the coal storage sub-bin, and the hydraulic gate is arranged at the discharging port of the coal storage sub-bin.

3. The coal loading system according to claim 2, characterized in that: The clean coal bunker also includes a plurality of first dischargers; A plurality of first dischargers are arranged in sequence along the transmission direction of the first belt conveyor. For each first discharger, the first discharger includes a first baffle, which moves between a first position and a second position, wherein the first position is a position on the first belt conveyor, and the second position is a position away from the first belt conveyor. When the first baffle is located at the first position, the clean coal on the first belt conveyor is discharged to the loading port of the coal storage sub-bin.

4. The coal loading system according to claim 2, characterized in that: The automatic coal blending device is a feeder scale; The discharge port of the coal storage sub-bin is aligned with the feed port of the feed scale, and the loading end of the second belt conveyor is arranged at the discharge port of the feed scale.

5. The coal loading system according to claim 1, characterized in that: The crusher chamber also includes a first distributor; The unloading end of the second belt conveyor is arranged at the feeding port of the first distributor, and the discharging port of the first distributor is aligned with the crusher.

6. The coal loading system according to claim 1, characterized in that: The briquettes preparation workshop also includes a second distributor and a buffer bin; The discharge end of the third belt conveyor is arranged at the inlet of the second material distributor, and the discharge port of the second material distributor is aligned with the inlet of the buffer bin; The discharge port of the buffer bin is aligned with the feed port of the coal compressor.

7. The coal loading system according to claim 6, characterized in that: The briquettes preparation workshop also includes a fourth belt conveyor and a second discharger; The second discharger includes a second baffle, which moves between a third position and a fourth position, wherein the third position is a position on the fourth belt conveyor, and the fourth position is a position away from the fourth belt conveyor. When the second baffle is located at the third position, the clean coal on the fourth belt conveyor is discharged to the feed port of the buffer bin.

8. The coal loading system according to claim 3, characterized in that: The coal loading system further includes a coal transfer station; the first belt conveyor includes a fifth belt conveyor and a sixth belt conveyor; The loading end of the fifth belt conveyor is arranged at the unloader of the coal washing workshop, and the unloading end of the fifth belt conveyor is arranged at the feeding port of the coal transfer station; The loading end of the sixth belt conveyor is arranged at the discharge port of the coal transfer station, and the unloading end of the sixth belt conveyor is arranged at the feeding port of the first unloader.

9. The coal loading system according to claim 8, characterized in that: The conveyor belt of the fifth belt conveyor is also provided with an electronic belt scale.

10. The coal loading system according to claim 3, 8 or 9, characterized in that: The first discharger is a plough type discharger.

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