A blue coke sealing discharging system and control method for composite furnace coke quenching equipment

Abstract

The present invention discloses a blue coke sealed discharging system and control method for a composite furnace quenching equipment, the system comprising a discharging device and a control device, the discharging device comprising an upper quantitative bin, a lower discharging bin, a first hydraulic gate valve and a first hydraulic flap valve, as well as a second hydraulic gate valve and a second hydraulic flap valve; the control method comprises: 1. opening the circulation of blue coke from the upper quantitative bin to the lower discharging bin; 2. stopping the circulation of blue coke from the upper quantitative bin to the lower discharging bin; 3. opening the discharge of blue coke from the lower discharging bin; 3. stopping the discharge of blue coke from the lower discharging bin. The present invention realizes automatic control of the sealed discharging process of the blue coke sealed discharging system by automatically controlling the first hydraulic gate valve, the first hydraulic flap valve, the second hydraulic gate valve and the second hydraulic flap valve, which can prevent harmful gases in the upper quantitative bin from circulating into the air through the discharge port of the upper quantitative bin, and is convenient for popularization and application.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical semi-coke production, and in particular relates to a semi-coke sealing discharging system and a control method for composite furnace coke quenching equipment. Background Art

[0002] At present, the existing blue coke discharging system of the composite furnace quenching equipment adopts the method of manual operation and manual observation. In the actual production process, there are the following defects: 1. In the process of high-temperature combustion of coal in the composite furnace to produce blue coke, harmful gases will be generated. When the blue coke is transported to the upper quantitative bin of the blue coke discharging system by a sealed scraper conveyor, the harmful gases will enter the upper quantitative bin with the blue coke. When the sealing of the blue coke discharging system is poor, the harmful gases will leak into the air, which will not only pollute the environment, but also endanger people's health and life safety; 2. In the process of manual observation and manual operation, once an operating error or misoperation occurs, it is likely to cause a safety accident. Therefore, a blue coke sealing discharging system and control method for composite furnace quenching equipment with good sealing performance and easy automatic control should be provided. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a blue coke sealed discharging system for a composite furnace quenching equipment in view of the deficiencies in the above-mentioned prior art. The system has a simple structure and a reasonable design. By automatically controlling the first hydraulic gate valve, the first hydraulic flap valve, the second hydraulic gate valve and the second hydraulic flap valve, the sealed discharging process of the blue coke sealed discharging system can be automatically controlled, which can prevent harmful gases in the upper quantitative bin from flowing into the air through the discharge port of the upper quantitative bin, thereby facilitating promotion and application.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a blue coke sealed discharging system of a composite furnace quenching equipment, characterized in that: it includes a discharging device and a control device connected to the discharging device, the discharging device includes an upper quantitative bin connected to a scraper conveyor and a lower discharging bin located directly below the upper quantitative bin and connected to the upper quantitative bin, the discharging port of the upper quantitative bin is installed with a first hydraulic gate valve, the first hydraulic gate valve is connected with a first hydraulic flap valve directly below the first hydraulic gate valve, and the discharging port of the lower discharging bin is installed There is a second hydraulic gate valve with the same structure as the first hydraulic gate valve, and a second hydraulic flap valve with the same structure as the first hydraulic flap valve is connected directly below the second hydraulic gate valve. The first hydraulic gate valve and the second hydraulic gate valve both include a gate valve body and a gate slidably mounted on the gate valve body. The gate of the first hydraulic gate valve is driven by a first gate drive cylinder, and the gate of the second hydraulic gate valve is driven by a second gate drive cylinder. The first hydraulic flap valve and the second hydraulic flap valve both include a flap A valve body, a discharge pipe installed on the flap valve body and extending from the bottom end to the inside of the flap valve body, a valve cover arranged inside the flap valve body for opening or closing the discharge pipe, and a connecting rod transmission mechanism connected to the valve cover, the valve cover of the first hydraulic flap valve is driven by a first valve cover driving cylinder, the valve cover of the second hydraulic flap valve is driven by a second valve cover driving cylinder, the bottom end of the discharge pipe is oblique, a fixing ring is fixedly installed at the bottom end of the discharge pipe, a rubber sealing ring is fixedly installed on the fixing ring, and a rubber sealing sleeve is sleeved on the valve cover, the control device includes a controller, a first microwave level switch and a second microwave level switch installed inside the upper quantitative bin, and a third microwave level switch installed inside the lower discharge bin, the first microwave level switch, the second microwave level switch and the third microwave level switch are all connected to the input end of the controller, and the first gate driving cylinder, the second gate driving cylinder, the first valve cover driving cylinder and the second valve cover driving cylinder are all connected to the output end of the controller.

[0005] The above-mentioned semi-coke sealed discharging system of the composite furnace quenching equipment is characterized in that: the gate valve body includes a rectangular frame and a flange arranged on the bottom surface of the rectangular frame, a rib plate is arranged between the rectangular frame and the flange, a fixing rod is fixedly installed on the gate, the piston rod of the first gate driving cylinder is hingedly installed on the fixing rod of the first hydraulic gate valve, the piston rod of the second gate driving cylinder is hingedly installed on the fixing rod of the second hydraulic gate valve, and the top end of the discharge pipe is provided with a connecting flange for fixed connection with the flange.

[0006] The above-mentioned semi-coke sealed discharging system of the composite furnace quenching equipment is characterized in that: the valve body of the flap valve is a cubic hollow valve body with an opening at the bottom end, a manhole is arranged on the first side wall of the cubic hollow valve body, a fixed seat is arranged on the outer surface of the second side wall of the cubic hollow valve body, a cylinder support is installed on the fixed seat, the cylinder body of the first valve cover driving cylinder is hingedly installed on the cylinder support of the first hydraulic flap valve, and the cylinder body of the second valve cover driving cylinder is hingedly installed on the cylinder support of the second hydraulic flap valve.

[0007] The above-mentioned semi-coke sealed discharging system of a composite furnace quenching equipment is characterized in that: the connecting rod transmission mechanism includes a first connecting rod frame arranged on the outside of the second side wall, a rotating shaft connected to the first connecting rod frame and a second connecting rod frame installed on the rotating shaft, the rotating shaft is penetrated through the first side wall and the second side wall, the top end of the first connecting rod frame is fixedly installed on the rotating shaft, the second connecting rod frame is located inside the cubic hollow valve body, both ends of the rotating shaft are provided with seat bearings, two of the seat bearings are respectively installed on the first side wall and the second side wall, the piston rod of the first valve cover driving cylinder is hingedly installed on the bottom end of the first connecting rod frame of the first hydraulic flap valve, and the piston rod of the second valve cover driving cylinder is hingedly installed on the bottom end of the first connecting rod frame of the second hydraulic flap valve.

[0008] The above-mentioned blue coke sealed discharging system of the composite furnace quenching equipment is characterized in that a mounting plate is fixedly mounted on the second connecting rod frame, a ball pin is fixedly mounted on the mounting plate, and the valve cover is connected to the ball pin through a first clamping plate and a second clamping plate.

[0009] The above-mentioned semi-coke sealed discharging system of the composite furnace quenching equipment is characterized in that: a first limit sensor for detecting the telescopic position of the piston rod of the first gate driving cylinder is installed on the rectangular frame of the first hydraulic gate valve, a second limit sensor for detecting the telescopic position of the piston rod of the second gate driving cylinder is installed on the rectangular frame of the second hydraulic gate valve, a third limit sensor for detecting the telescopic position of the piston rod of the first valve cover driving cylinder is installed on the valve body of the first hydraulic flap valve, and a fourth limit sensor for detecting the telescopic position of the piston rod of the second valve cover driving cylinder is installed on the valve body of the second hydraulic flap valve; the first limit sensor, the second limit sensor, the third limit sensor and the fourth limit sensor are all connected to the input end of the controller.

[0010] The present invention also provides a blue carbon sealed discharging control method, characterized in that the control method comprises the following steps:

[0011] Step 1: Start the flow of blue coke from the upper quantitative bin to the lower discharge bin

[0012] Step 101: Opening of the first hydraulic flap valve

[0013] A scraper conveyor is used to load semi-coke into the upper quantitative bin, and the first microwave level switch detects the material level height of the semi-coke loaded in the upper quantitative bin in real time. When the first microwave level switch detects that the material level height of the semi-coke loaded in the upper quantitative bin reaches the first set material level height, the controller controls the piston rod of the first valve cover driving cylinder to extend, and opens the valve cover of the first hydraulic flap valve;

[0014] Step 102: Opening of the first hydraulic gate valve

[0015] After the valve cover of the first hydraulic flap valve is opened, the controller controls the piston rod of the first gate drive cylinder to retract, driving the gate of the first hydraulic gate valve to slide, opening the first hydraulic gate valve, and the semi-coke in the upper quantitative bin begins to flow into the lower discharge bin;

[0016] Step 2: Stop the flow of blue coke from the upper quantitative bin to the lower discharge bin

[0017] Step 201: Closing of the first hydraulic gate valve

[0018] When the second microwave level switch detects that the level of the semi-coke in the upper quantitative bin reaches the second set level, the controller controls the piston rod of the first gate drive cylinder to extend, driving the gate of the first hydraulic gate valve to slide, and closing the first hydraulic gate valve;

[0019] Step 202: Closing of the first hydraulic flap valve

[0020] After the first hydraulic gate valve is closed, the controller controls the piston rod of the first valve cover driving cylinder to retract, closes the valve cover of the first hydraulic flap valve, and the semi-coke in the upper quantitative bin stops flowing into the lower discharge bin;

[0021] Step 3: Open the lower discharge bin to discharge the semi-coke

[0022] Step 301: Opening of the second hydraulic flap valve

[0023] After the first hydraulic flap valve is closed, the controller controls the piston rod of the second valve cover driving cylinder to extend to open the valve cover of the second hydraulic flap valve;

[0024] Step 302: Opening of the second hydraulic gate valve

[0025] After the valve cover of the second hydraulic flap valve is opened, the controller controls the piston rod of the second gate drive cylinder to retract, driving the gate of the second hydraulic gate valve to slide, opening the second hydraulic gate valve, and the semi-coke in the lower discharge bin begins to flow out;

[0026] Step 4: Stop the discharge of semi-coke from the lower discharge bin

[0027] Step 401: Closing of the second hydraulic gate valve

[0028] When the third microwave level switch detects that the level of the semi-coke in the lower discharge bin reaches the third set level, the controller controls the piston rod of the second gate drive cylinder to extend, driving the gate of the second hydraulic gate valve to slide, and closing the second hydraulic gate valve;

[0029] Step 402: Closing of the second hydraulic flap valve

[0030] After the second hydraulic gate valve is closed, the controller controls the piston rod of the second valve cover driving cylinder to retract, closes the valve cover of the second hydraulic flap valve, and the lignite in the lower discharge bin stops flowing out.

[0031] The above-mentioned blue coke sealed discharging control method is characterized in that: when the first hydraulic flap valve is opened in step 101, the third limit sensor detects whether the extension amount of the piston rod of the first valve cover driving cylinder reaches the second extension amount setting value, when the extension amount of the piston rod of the first valve cover driving cylinder reaches the second extension amount setting value, step 102 is executed, when the extension amount of the piston rod of the first valve cover driving cylinder does not reach the second extension amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled;

[0032] When the first hydraulic gate valve is opened in step 102, the first limit sensor detects whether the retraction amount of the piston rod of the first gate drive cylinder reaches the first retraction amount setting value. When the retraction amount of the piston rod of the first gate drive cylinder reaches the first retraction amount setting value, step 2 is executed. When the retraction amount of the piston rod of the first gate drive cylinder does not reach the first retraction amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled;

[0033] When the first hydraulic gate valve is closed in step 201, the first limit sensor detects whether the extension amount of the piston rod of the first gate drive cylinder reaches the first extension amount setting value. When the retraction amount of the piston rod of the first gate drive cylinder reaches the first extension amount setting value, step 202 is executed. When the retraction amount of the piston rod of the first gate drive cylinder does not reach the first extension amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled;

[0034] When the first hydraulic flap valve is closed in step 202, the third limit sensor detects whether the retraction amount of the piston rod of the first valve cover driving cylinder reaches the second retraction amount setting value. When the retraction amount of the piston rod of the first valve cover driving cylinder reaches the second retraction amount setting value, step three is executed. When the retraction amount of the piston rod of the first valve cover driving cylinder does not reach the second retraction amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is inspected and maintained.

[0035] The above-mentioned blue coke sealed discharging control method is characterized in that: when the second hydraulic flap valve is opened in step 301, the second limit sensor detects whether the extension amount of the piston rod of the second valve cover driving cylinder reaches the second extension amount setting value, when the extension amount of the piston rod of the second valve cover driving cylinder reaches the second extension amount setting value, step 302 is executed, when the extension amount of the piston rod of the second valve cover driving cylinder does not reach the second extension amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled;

[0036] When the second hydraulic gate valve is opened in step 302, the fourth limit sensor detects whether the retraction amount of the piston rod of the second gate drive cylinder reaches the first retraction amount setting value. When the retraction amount of the piston rod of the second gate drive cylinder reaches the first retraction amount setting value, step 4 is executed. When the retraction amount of the piston rod of the second gate drive cylinder does not reach the first retraction amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled;

[0037] When the second hydraulic gate valve is closed in step 401, the fourth limit sensor detects whether the extension amount of the piston rod of the second gate drive cylinder reaches the first extension amount setting value. When the retraction amount of the piston rod of the second gate drive cylinder reaches the first extension amount setting value, step 402 is executed. When the retraction amount of the piston rod of the second gate drive cylinder does not reach the first extension amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled;

[0038] When the second hydraulic flap valve is closed in step 402, the second limit sensor detects whether the retraction amount of the piston rod of the second valve cover driving cylinder reaches the second retraction amount setting value. When the retraction amount of the piston rod of the second valve cover driving cylinder reaches the second retraction amount setting value, the lignite in the lower discharge bin stops flowing out. When the retraction amount of the piston rod of the second valve cover driving cylinder does not reach the second retraction amount setting value, the discharge port of the upper quantitative bin and the discharge port of the lower discharge bin are closed, and the system is overhauled.

[0039] Compared with the prior art, the present invention has the following advantages:

[0040] 1. The sealed discharging system of blue coke of the present invention is provided with a first hydraulic gate valve at the discharging port of the upper quantitative bin, and a first hydraulic flap valve is installed directly below the first hydraulic gate valve, that is, the first hydraulic gate valve and the first hydraulic flap valve are located between the discharging port of the upper quantitative bin and the feeding port of the lower discharging bin. In actual use, when the first hydraulic gate valve and the first hydraulic flap valve are both in an open state, the blue coke can flow from the upper quantitative bin to the lower discharging bin. When the first hydraulic gate valve and the first hydraulic flap valve are both in a closed state, the blue coke cannot flow from the upper quantitative bin to the lower discharging bin. By discharging the blue coke at the lower discharging bin, the blue coke can be discharged from the upper quantitative bin to the lower discharging bin. A second hydraulic gate valve is installed at the outlet, and a second hydraulic flap valve is installed just below the second hydraulic gate valve. In actual use, when the second hydraulic gate valve and the second hydraulic flap valve are both in an open state, the lignite can be discharged from the outlet of the lower discharge bin; when the second hydraulic gate valve and the second hydraulic flap valve are both in a closed state, the lignite cannot be discharged from the outlet of the lower discharge bin; since the structure of the first hydraulic gate valve is the same as that of the second hydraulic gate valve, and the structure of the first hydraulic flap valve is the same as that of the second hydraulic flap valve, it is easy to process and manufacture, easy to automatically control, and has good interchangeability, and can reduce the failure rate of the lignite sealing discharge system.

[0041] 2. The first hydraulic flap valve and the second hydraulic flap valve of the blue coke sealed discharging system of the present invention both include a flap valve body, a discharge pipe and a valve cover for opening or closing the bottom end of the discharge pipe. In actual use, the top end of the flap valve body of the first hydraulic flap valve is fixedly connected to the gate valve body of the first hydraulic gate valve, and the bottom end of the flap valve body of the first hydraulic flap valve is fixedly connected to the discharge port of the lower discharge bin. At this time, the flap valve body serves as a connecting piece for connecting the gate valve body of the first hydraulic gate valve and the discharge port of the lower discharge bin; by installing the discharge pipe on the flap valve body, and since the bottom end of the discharge pipe extends to the interior of the flap valve body, the valve cover is arranged inside the flap valve body; when the flap valve body and the discharge pipe are detachable, the flap valve body and the discharge pipe are independent of each other. When the discharge pipe is damaged When the valve cover of the first hydraulic flap valve is opened, only the discharge pipe needs to be replaced, and there is no need to replace the flap valve body, which reduces the maintenance cost. At the same time, through the connection relationship between the discharge pipe and the flap valve body, the installation accuracy of the flap valve body can be adjusted, which is convenient for installation. The valve cover of the first hydraulic flap valve is driven by the first valve cover driving cylinder, and the first valve cover driving cylinder and the valve cover of the first hydraulic flap valve are connected by a connecting rod transmission mechanism. In actual use, since the valve cover of the first hydraulic flap valve is located inside the flap valve body of the first hydraulic flap valve, and the first valve cover driving cylinder is located outside the flap valve body of the first hydraulic flap valve, it is necessary to set a connecting rod transmission mechanism for transmission between the first valve cover driving cylinder and the valve cover of the first hydraulic flap valve, so as to achieve the purpose of driving the valve cover of the first hydraulic flap valve to open or close by the first valve cover driving cylinder.

[0042] 3. The control device of the sealed discharging system of the semi-coke of the present invention comprises a controller, a first microwave level switch connected to the input end of the controller, a second microwave level switch and a third microwave level switch. In actual use, the first microwave level switch and the second microwave level switch are both installed inside the upper quantitative bin, and the third microwave level switch is installed inside the lower discharging bin. The first gate drive cylinder, the second gate drive cylinder, the first valve cover drive cylinder and the second valve cover drive cylinder are all connected to the output end of the controller. Therefore, in actual use, when it is necessary to open the semi-coke to flow from the upper quantitative bin to the lower discharging bin, it is necessary to open the first hydraulic flap valve first. The process of the controller controlling the opening of the first hydraulic flap valve is as follows: in the process of using a scraper conveyor to fill semi-coke into the upper quantitative bin, the first microwave level switch performs real-time detection of the material level height of the semi-coke filled in the upper quantitative bin. When the first microwave level switch detects that the material level height of the semi-coke filled in the upper quantitative bin reaches When the first set material level height is reached, the controller controls the piston rod of the first valve cover driving cylinder to extend and open the valve cover of the first hydraulic flap valve; when it is necessary to stop the flow of lignite from the upper quantitative bin to the lower discharge bin, the first hydraulic gate valve needs to be closed first, and the process of the controller controlling the first hydraulic gate valve to be closed is as follows: when the second microwave material level switch detects that the material level of lignite in the upper quantitative bin reaches the second set material level height, the controller controls the piston rod of the first gate driving cylinder to extend, drive the gate of the first hydraulic gate valve to slide, and close the first hydraulic gate valve; when it is necessary to stop the flow of lignite from the lower discharge bin, the second hydraulic gate valve needs to be closed first, and the process of the controller controlling the second hydraulic gate valve to be closed is as follows: when the third microwave material level switch detects that the material level of lignite in the lower discharge bin reaches the third set material level height, the controller controls the piston rod of the second gate driving cylinder to extend, drive the gate of the second hydraulic gate valve to slide, and close the second hydraulic gate valve.

[0043] 4. The sealed discharging control method of the present invention realizes automatic control of the sealed discharging process of the sealed discharging system of the lignite by automatically controlling the first hydraulic gate valve, the first hydraulic flap valve, the second hydraulic gate valve and the second hydraulic flap valve, which can prevent harmful gases in the upper quantitative bin from flowing into the air through the discharge port of the upper quantitative bin, and is convenient for promotion and application.

[0044] To summarize, the present invention realizes automatic control of the sealed discharging process of the lignite sealed discharging system through automatic control of the first hydraulic gate valve, the first hydraulic flap valve, the second hydraulic gate valve and the second hydraulic flap valve, which can prevent harmful gases in the upper quantitative bin from flowing into the air through the discharge port of the upper quantitative bin, and is convenient for promotion and application.

[0045] The present invention is further described in detail below through the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of the discharge device of the blue coke sealed discharge system of the composite furnace quenching equipment of the present invention.

[0047] Figure 2 It is a schematic diagram of the connection relationship between the first gate drive cylinder and the first hydraulic gate valve (the second gate drive cylinder and the second hydraulic gate valve) of the present invention.

[0048] Figure 3 It is a schematic diagram of the connection relationship between the first valve cover driving cylinder and the first hydraulic flap valve (the second valve cover driving cylinder and the second hydraulic flap valve) of the present invention.

[0049] Figure 4 It is a schematic structural diagram of the first hydraulic flap valve (second hydraulic flap valve) of the present invention.

[0050] Figure 5 It is a schematic diagram of the state after the valve cover of the first hydraulic flap valve of the present invention is closed (after the valve cover of the second hydraulic flap valve is closed).

[0051] Figure 6 It is a schematic diagram of the state after the valve cover of the first hydraulic flap valve of the present invention is opened (after the valve cover of the second hydraulic flap valve is opened).

[0052] Figure 7 The present invention is a circuit principle block diagram of a control device for a blue coke sealed discharging system of a composite furnace coke quenching equipment.

[0053] Figure 8 It is a flowchart of the control method of the present invention.

[0054] Description of reference numerals:

[0055] 1—Upper quantitative bin; 2—Lower discharge bin; 3-1—Rectangular frame;

[0056] 3-2—flange; 3-3—rib plate; 4—gate plate;

[0057] 5—fixed rod; 6-1—first gate drive cylinder; 6-2—second gate drive cylinder;

[0058] 7—flap valve body; 7-1—first side wall; 7-1-1—manhole;

[0059] 7-2—second side wall; 7-2-1—fixed seat; 8—discharging pipe;

[0060] 8-2—Connecting flange; 8-1—Retaining ring; 9—Rubber sealing ring;

[0061] 10—valve cover; 11-1—first valve cover driving cylinder; 11-2—second valve cover driving cylinder;

[0062] 12—Cylinder support; 13—First connecting rod frame; 14—Rotating shaft;

[0063] 15—bearing with seat; 16—second connecting rod frame; 17—mounting plate;

[0064] 18—ball pin; 19-1—first clamping plate; 19-2—second clamping plate;

[0065] 20—rubber sealing sleeve; 21—controller; 22—first microwave material level switch;

[0066] 23—first microwave material level switch; 24—third microwave material level switch;

[0067] 25-1—first limit sensor; 25-2—second limit sensor;

[0068] 25-3—the third limit sensor; 25-4—the fourth limit sensor. DETAILED DESCRIPTION

[0069] like Figures 1 to 7A sealed discharging system of blue coke for a composite furnace quenching equipment is shown, comprising a discharging device and a control device connected to the discharging device, wherein the discharging device comprises an upper quantitative bin 1 connected to a scraper conveyor and a lower discharging bin 2 located directly below the upper quantitative bin 1 and connected to the upper quantitative bin 1, a first hydraulic gate valve is installed at the discharging port of the upper quantitative bin 1, a first hydraulic flap valve is connected directly below the first hydraulic gate valve, a second hydraulic gate valve having the same structure as the first hydraulic gate valve is installed at the discharging port of the lower discharging bin 2, and the second hydraulic gate valve is directly connected to the lower discharging bin 2. A second hydraulic flap valve having the same structure as the first hydraulic flap valve is connected below, the first hydraulic gate valve and the second hydraulic gate valve both include a gate valve body, a gate plate 4 slidably mounted on the gate valve body, the gate plate 4 of the first hydraulic gate valve is driven by a first gate drive cylinder 6-1, and the gate plate 4 of the second hydraulic gate valve is driven by a second gate drive cylinder 6-2, the first hydraulic flap valve and the second hydraulic flap valve both include a flap valve body 7, a discharge pipe 8 mounted on the flap valve body 7 and with the bottom end extending to the inside of the flap valve body 7, A valve cover 10 and a connecting rod transmission mechanism connected to the valve cover 10 are arranged inside the flap valve body 7 for opening or closing the discharge pipe 8. The valve cover 10 of the first hydraulic flap valve is driven by a first valve cover driving cylinder 11-1, and the valve cover 10 of the second hydraulic flap valve is driven by a second valve cover driving cylinder 11-2. The bottom end of the discharge pipe 8 is oblique, and a fixing ring 8-1 is fixedly installed at the bottom end of the discharge pipe 8. A rubber sealing ring 9 is fixedly installed on the fixing ring 8-1. A rubber sealing sleeve 20 is sleeved on the valve cover 10. The control device includes a control The controller 21, the first microwave level switch 22 and the second microwave level switch 23 installed in the upper quantitative bin 1, and the third microwave level switch 24 installed in the lower discharge bin 2, the first microwave level switch 22, the second microwave level switch 23 and the third microwave level switch 24 are all connected to the input end of the controller 21, and the first gate drive cylinder 6-1, the second gate drive cylinder 6-2, the first valve cover drive cylinder 11-1 and the second valve cover drive cylinder 11-2 are all connected to the output end of the controller 21.

[0070] like Figure 1As shown, in the present embodiment, a first hydraulic gate valve is installed at the discharge port of the upper quantitative bin 1, and a first hydraulic flap valve is installed directly below the first hydraulic gate valve, that is, the first hydraulic gate valve and the first hydraulic flap valve are located between the discharge port of the upper quantitative bin 1 and the feed port of the lower discharge bin 2. In actual use, when the first hydraulic gate valve and the first hydraulic flap valve are both in an open state, the purpose of the flow of semi-coke from the upper quantitative bin 1 to the lower discharge bin 2 can be achieved; when the first hydraulic gate valve and the first hydraulic flap valve are both in a closed state, the semi-coke cannot flow from the upper quantitative bin 1 to the lower discharge bin 2; by A second hydraulic gate valve is installed at the material inlet, and a second hydraulic flap valve is installed directly below the second hydraulic gate valve. In actual use, when the second hydraulic gate valve and the second hydraulic flap valve are both in an open state, the lignite can be discharged from the material outlet of the lower material outlet bin 2. When the second hydraulic gate valve and the second hydraulic flap valve are both in a closed state, the lignite cannot be discharged from the material outlet of the lower material outlet bin 2. Since the structure of the first hydraulic gate valve is the same as that of the second hydraulic gate valve, and the structure of the first hydraulic flap valve is the same as that of the second hydraulic flap valve, it is easy to process and manufacture, easy to automatically control, and has good interchangeability, which can reduce the failure rate of the lignite sealing discharge system.

[0071] like Figure 2 As shown, in this embodiment, the first hydraulic gate valve and the second hydraulic gate valve both include a gate valve body and a gate plate 4 slidably mounted on the gate valve body. In actual use, the gate valve body of the first hydraulic gate valve is fixedly mounted on the discharge port of the upper quantitative bin 1. When the gate plate 4 of the first hydraulic gate valve is driven by the first gate driving cylinder 6-1, the gate plate 4 of the first hydraulic gate valve can slide along the gate valve body of the first hydraulic gate valve to achieve the purpose of opening or closing the discharge port of the upper quantitative bin 1; the gate valve body of the second hydraulic gate valve is fixedly mounted on the discharge port of the lower discharge bin 2. When the gate plate 4 of the second hydraulic gate valve is driven by the second gate driving cylinder 6-2, the gate plate 4 of the second hydraulic gate valve can slide along the gate valve body of the second hydraulic gate valve to achieve the purpose of opening or closing the discharge port of the lower discharge bin 2.

[0072] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in this embodiment, the first hydraulic flap valve and the second hydraulic flap valve both include a flap valve body 7, a discharge pipe 8 and a valve cover 10 for opening or closing the bottom end of the discharge pipe 8. In actual use, the top end of the flap valve body 7 of the first hydraulic flap valve is fixedly connected to the gate valve body of the first hydraulic gate valve, and the bottom end of the flap valve body 7 of the first hydraulic flap valve is fixedly connected to the discharge port of the lower discharge bin 2. At this time, the flap valve body 7 serves as a connecting piece for connecting the gate valve body of the first hydraulic gate valve and the discharge port of the lower discharge bin 2; by installing the discharge pipe 8 on the flap valve body 7, the valve body 7 is connected to the discharge port of the lower discharge bin 2. Pipe 8, and since the bottom end of the discharge pipe 8 extends to the interior of the flap valve body 7, the valve cover 10 is arranged inside the flap valve body 7; the purpose of installing the discharge pipe 8 on the flap valve body 7 is that: when the flap valve body 7 and the discharge pipe 8 are detachable, the flap valve body 7 and the discharge pipe 8 are independent of each other. When the discharge pipe 8 is damaged, only the discharge pipe 8 needs to be replaced, and there is no need to replace the flap valve body 7, thereby reducing the maintenance cost. At the same time, through the connection relationship between the discharge pipe 8 and the flap valve body 7, the installation accuracy of the flap valve body 7 can be adjusted, which is convenient for installation.

[0073] In the present embodiment, the valve cover 10 of the first hydraulic flap valve is driven by the first valve cover driving cylinder 11-1, and the first valve cover driving cylinder 11-1 is connected to the valve cover 10 of the first hydraulic flap valve through a connecting rod transmission mechanism. In actual use, since the valve cover 10 of the first hydraulic flap valve is located inside the flap valve body 7 of the first hydraulic flap valve, and the first valve cover driving cylinder 11-1 is located outside the flap valve body 7 of the first hydraulic flap valve, it is necessary to provide a connecting rod transmission mechanism for transmission between the first valve cover driving cylinder 11-1 and the valve cover 10 of the first hydraulic flap valve, so as to achieve the purpose of driving the valve cover 10 of the first hydraulic flap valve to open or close by the first valve cover driving cylinder 11-1.

[0074] In this embodiment, since the bottom end of the discharge pipe 8 is beveled, under the transmission action of the connecting rod transmission mechanism, when the valve cover 10 is opened or closed, the deflection angle of the valve cover 10 is 60°, which can save the space required for the deflection of the valve cover 10, thereby reducing the volume of the flap valve body 7. At the same time, it can shorten the stroke of the first valve cover driving cylinder 11-1, and the use effect is good.

[0075] In this embodiment, a fixing ring 8-1 is fixedly installed at the bottom end of the discharge pipe 8, a rubber sealing ring 9 is fixedly installed on the fixing ring 8-1, and a rubber sealing sleeve 20 is mounted on the valve cover 10. In actual use, the fixing ring 8-1 mainly serves to fix the rubber sealing ring 9. In the process of loading lignite into the upper quantitative bin 1 by a scraper conveyor, harmful gases also enter the upper quantitative bin 1 along with the lignite. Therefore, when the first hydraulic gate valve and the first hydraulic flap valve are both in a closed state, a closed cavity is formed in the upper quantitative bin 1. Under the joint action of the rubber sealing ring 9 and the rubber sealing sleeve 20, the harmful gases in the upper quantitative bin 1 can be prevented from flowing into the air through the discharge port of the upper quantitative bin 1.

[0076] In this embodiment, the rubber sealing ring 9 and the rubber sealing sleeve 20 are both made of high temperature resistant fluororubber.

[0077] like Figure 1 and Figure 7As shown, in this embodiment, the control device includes a controller 21, a first microwave level switch 22 connected to the input end of the controller 21, a second microwave level switch 23 and a third microwave level switch 24. In actual use, the first microwave level switch 22 and the second microwave level switch 23 are both installed inside the upper quantitative bin 1, and the third microwave level switch 24 is installed inside the lower discharge bin 2. The vertical distance between the installation height of the first microwave level switch 22 and the feed port of the upper quantitative bin 1 is in the range of 200mm to 300mm, and the vertical distance between the installation height of the second microwave level switch 23 and the discharge port of the upper quantitative bin 1 is in the range of 200mm to 300mm. The value range is 200mm~300mm, the value range of the vertical distance between the installation height of the third microwave level switch 24 and the discharge port of the lower discharge bin 2 is 200mm~300mm, and because the first gate drive cylinder 6-1, the second gate drive cylinder 6-2, the first valve cover drive cylinder 11-1 and the second valve cover drive cylinder 11-2 are all connected to the output end of the controller 21, therefore, in actual use, when it is necessary to open the flow of blue coal from the upper quantitative bin 1 to the lower discharge bin 2, it is necessary to open the first hydraulic flap valve first, and the process of the controller 21 controlling the opening of the first hydraulic flap valve is: when the scraper conveyor is used upward During the process of filling the semi-coke in the upper quantitative bin 1, the first microwave level switch 22 detects the material level height of the semi-coke filled in the upper quantitative bin 1 in real time. When the first microwave level switch 22 detects that the material level height of the semi-coke filled in the upper quantitative bin 1 reaches the first set material level height, the controller 21 controls the first valve cover to drive the piston rod of the oil cylinder 11-1 to extend, and opens the valve cover 10 of the first hydraulic flap valve; when it is necessary to stop the semi-coke from the upper quantitative bin 1 to the lower discharge bin 2, it is necessary to close the first hydraulic gate valve first. The process of the controller 21 controlling the closing of the first hydraulic gate valve is as follows: when the second microwave level switch 23 detects that the material level height of the semi-coke filled in the upper quantitative bin 1 reaches the first set material level height, the controller 21 controls the first valve cover to drive the piston rod of the oil cylinder 11-1 to extend, and opens the valve cover 10 of the first hydraulic flap valve. When it is necessary to stop the semi-coke from the upper quantitative bin 1 to the lower discharge bin 2, the first hydraulic gate valve needs to be closed first. The process of the controller 21 controlling the closing of the first hydraulic gate valve is as follows: when the second microwave level switch 23 detects that the material level height of the semi-coke filled in the upper quantitative bin 1 reaches the first set material level height, the controller 21 controls the first hydraulic gate valve to close. When the material level of the lignite reaches the second set material level, the controller 21 controls the piston rod of the first gate driving cylinder 6-1 to extend, driving the gate 4 of the first hydraulic gate valve to slide, and closing the first hydraulic gate valve; when it is necessary to stop the lignite from flowing out of the lower discharge bin 2, the second hydraulic gate valve needs to be closed first, and the process of the controller 21 controlling the closing of the second hydraulic gate valve is as follows: when the third microwave material level switch 24 detects that the material level of the lignite in the lower discharge bin 2 reaches the third set material level, the controller 21 controls the piston rod of the second gate driving cylinder 6-2 to extend, driving the gate 4 of the second hydraulic gate valve to slide, and closing the second hydraulic gate valve.

[0078] In this embodiment, the first microwave material level switch 22, the second microwave material level switch 23 and the third microwave material level switch 24 are all microwave material level switches of model GMSU101XA22-M01+GMSRU101SA22-M01, and the controller 21 adopts SM202 main controller module.

[0079] like Figure 1 and Figure 2 As shown, in this embodiment, the gate valve body includes a rectangular frame 3-1 and a flange 3-2 arranged on the bottom surface of the rectangular frame 3-1, a rib plate 3-3 is arranged between the rectangular frame 3-1 and the flange 3-2, a fixing rod 5 is fixedly installed on the gate 4, the piston rod of the first gate driving cylinder 6-1 is hingedly installed on the fixing rod 5 of the first hydraulic gate valve, the piston rod of the second gate driving cylinder 6-2 is hingedly installed on the fixing rod 5 of the second hydraulic gate valve, and the top end of the discharge pipe 8 is provided with a connecting flange 8-2 for fixed connection with the flange 3-2.

[0080] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, the flap valve body 7 is a cubic hollow valve body with an opening at the bottom end, a manhole 7-1-1 is arranged on the first side wall 7-1 of the cubic hollow valve body, a fixed seat 7-2-1 is arranged on the outer surface of the second side wall 7-2 of the cubic hollow valve body, a cylinder support 12 is installed on the fixed seat 7-2-1, the cylinder body of the first valve cover driving cylinder 11-1 is hingedly installed on the cylinder support 12 of the first hydraulic flap valve, and the cylinder body of the second valve cover driving cylinder 11-2 is hingedly installed on the cylinder support 12 of the second hydraulic flap valve.

[0081] In this embodiment, the connecting rod transmission mechanism includes a first connecting rod frame 13 arranged on the outside of the second side wall 7-2, a rotating shaft 14 connected to the first connecting rod frame 13 and a second connecting rod frame 16 installed on the rotating shaft 14, the rotating shaft 14 is penetrated on the first side wall 7-1 and the second side wall 7-2, the top end of the first connecting rod frame 13 is fixedly installed on the rotating shaft 14, the second connecting rod frame 16 is located inside the cubic hollow valve body, both ends of the rotating shaft 14 are provided with seat bearings 15, and the two seat bearings 15 are respectively installed on the first side wall 7-1 and the second side wall 7-2, the piston rod of the first valve cover driving cylinder 11-1 is hingedly installed on the bottom end of the first connecting rod frame 13 of the first hydraulic flap valve, and the piston rod of the second valve cover driving cylinder 11-2 is hingedly installed on the bottom end of the first connecting rod frame 13 of the second hydraulic flap valve.

[0082] like Figure 5 and Figure 6As shown, in actual use, since the piston rod of the first valve cover driving cylinder 11-1 is hingedly installed on the bottom end of the first connecting rod frame 13 of the first hydraulic flap valve, when the piston rod of the first valve cover driving cylinder 11-1 is extended, the piston rod of the first valve cover driving cylinder 11-1 pushes the bottom end of the first connecting rod frame 13 of the first hydraulic flap valve, so that the first connecting rod frame 13 of the first hydraulic flap valve drives the rotating shaft 14 of the first hydraulic flap valve to rotate, and the rotating shaft 14 of the first hydraulic flap valve drives the second connecting rod frame 16 of the first hydraulic flap valve to deflect, and the second connecting rod frame 16 of the first hydraulic flap valve drives the valve cover 10 of the first hydraulic flap valve to deflect clockwise. By turning 60°, the purpose of opening the valve cover 10 of the first hydraulic flap valve can be achieved; when the piston rod of the first valve cover driving cylinder 11-1 is retracted, the piston rod of the first valve cover driving cylinder 11-1 pulls the bottom end of the first connecting rod frame 13 of the first hydraulic flap valve, so that the first connecting rod frame 13 of the first hydraulic flap valve drives the rotating shaft 14 of the first hydraulic flap valve to rotate, and the rotating shaft 14 of the first hydraulic flap valve drives the second connecting rod frame 16 of the first hydraulic flap valve to deflect, and the second connecting rod frame 16 of the first hydraulic flap valve drives the valve cover 10 of the first hydraulic flap valve to deflect 60° counterclockwise, which can achieve the purpose of closing the valve cover 10 of the first hydraulic flap valve.

[0083] In actual use, since the piston rod of the second valve cover driving cylinder 11-2 is hingedly installed on the bottom end of the first connecting rod frame 13 of the second hydraulic flap valve, when the piston rod of the second valve cover driving cylinder 11-2 is extended, the piston rod of the second valve cover driving cylinder 11-2 pushes the bottom end of the first connecting rod frame 13 of the second hydraulic flap valve, so that the first connecting rod frame 13 of the second hydraulic flap valve drives the rotating shaft 14 of the second hydraulic flap valve to rotate, and the rotating shaft 14 of the second hydraulic flap valve drives the second connecting rod frame 16 of the second hydraulic flap valve to deflect, and the second connecting rod frame 16 of the second hydraulic flap valve drives the valve cover 10 of the second hydraulic flap valve to deflect clockwise. 60°, that is, the purpose of opening the valve cover 10 of the second hydraulic flap valve can be achieved; when the piston rod of the second valve cover driving cylinder 11-2 is retracted, the piston rod of the second valve cover driving cylinder 11-2 pulls the bottom end of the first connecting rod frame 13 of the second hydraulic flap valve, so that the first connecting rod frame 13 of the second hydraulic flap valve drives the rotating shaft 14 of the second hydraulic flap valve to rotate, and the rotating shaft 14 of the second hydraulic flap valve drives the second connecting rod frame 16 of the second hydraulic flap valve to deflect, and the second connecting rod frame 16 of the second hydraulic flap valve drives the valve cover 10 of the second hydraulic flap valve to deflect 60° counterclockwise, that is, the purpose of closing the valve cover 10 of the second hydraulic flap valve can be achieved.

[0084] In this embodiment, a mounting plate 17 is fixedly mounted on the second connecting rod frame 16, a ball pin 18 is fixedly mounted on the mounting plate 17, and the valve cover 10 is connected to the ball pin 18 through a first clamping plate 19-1 and a second clamping plate 19-2.

[0085] In this embodiment, the connection between the mounting plate 17 and the valve cover 10 is realized by the ball pin 18, the first clamping plate 19-1 and the second clamping plate 19-2. Under the action of the ball pin 18, the cooperation between the valve cover 10 and the fixing ring 8-1 can be adjusted eccentrically, thereby avoiding the phenomenon of loose closure between the valve cover 10 and the fixing ring 8-1.

[0086] like Figure 7 As shown, in this embodiment, a first limit sensor 25-1 for detecting the telescopic position of the piston rod of the first gate driving cylinder 6-1 is installed on the rectangular frame of the first hydraulic gate valve, a second limit sensor 25-2 for detecting the telescopic position of the piston rod of the second gate driving cylinder 6-2 is installed on the rectangular frame of the second hydraulic gate valve, a third limit sensor 25-3 for detecting the telescopic position of the piston rod of the first valve cover driving cylinder 11-1 is installed on the valve body of the first hydraulic flap valve, and a fourth limit sensor 25-4 for detecting the telescopic position of the piston rod of the second valve cover driving cylinder 11-2 is installed on the valve body of the second hydraulic flap valve; the first limit sensor 25-1, the second limit sensor 25-2, the third limit sensor 25-3 and the fourth limit sensor 25-4 are all connected to the input end of the controller 21.

[0087] In this embodiment, the first limit sensor 25-1, the second limit sensor 25-2, the third limit sensor 25-3 and the fourth limit sensor 25-4 are all inductive sensors with a model of NI 15U-EM18WD-AP6X-H1141 / 3GD.

[0088] like Figure 1 , Figure 7 and Figure 8 A method for controlling the discharge of blue carbon sealed, combined with Figures 2 to 6 , the control method comprises the following steps:

[0089] Step 1: Start the flow of blue coke from the upper quantitative bin to the lower discharge bin

[0090] Step 101: Opening of the first hydraulic flap valve

[0091] The upper quantitative bin 1 is filled with semi-coke by a scraper conveyor, and the first microwave level switch 22 detects the material level of semi-coke in the upper quantitative bin 1 in real time. When the first microwave level switch 22 detects that the material level of semi-coke in the upper quantitative bin 1 reaches the first set material level, the controller 21 controls the piston rod of the first valve cover driving cylinder 11-1 to extend, and opens the valve cover 10 of the first hydraulic flap valve.

[0092] Step 102: Opening of the first hydraulic gate valve

[0093] After the valve cover 10 of the first hydraulic flap valve is opened, the controller 21 controls the piston rod of the first gate drive cylinder 6-1 to retract, driving the gate 4 of the first hydraulic gate valve to slide, opening the first hydraulic gate valve, and the semi-coke in the upper quantitative bin 1 begins to flow into the lower discharge bin 2;

[0094] In this embodiment, the first set material level height is the maximum value of the material level in the upper quantitative bin 1 pre-set in the controller 21, and the first microwave material level switch 22 is fixedly installed on the inner wall of the upper quantitative bin 1. The vertical distance between the installation height of the first microwave material level switch 22 and the feed port of the upper quantitative bin 1 ranges from 200mm to 300mm. The material level in the upper quantitative bin 1 can be fed back to the controller 21 in real time through the first microwave material level switch 22. When the first microwave material level switch 22 detects that the material level in the upper quantitative bin 1 has reached the first set material level height, the controller 21 controls the piston rod of the first valve cover driving cylinder 11-1 to extend, and opens the valve cover 10 of the first hydraulic flap valve, thereby realizing the first step of opening the flow of blue coke from the upper quantitative bin 1 to the lower discharge bin 2; because in the opening When the lignite flows from the upper quantitative bin 1 to the lower discharge bin 2, once the first hydraulic gate valve is opened, the lignite in the upper quantitative bin 1 will flow from the upper quantitative bin 1 to the lower discharge bin 2. If the first hydraulic flap valve is not opened in advance, the lignite will block the first hydraulic flap valve. Therefore, the first hydraulic flap valve should be opened first, and then the first hydraulic gate valve should be opened after the first hydraulic flap valve is opened. The time interval between opening the first hydraulic gate valve and opening the first hydraulic flap valve is in the range of 5s to 10s, which can avoid the phenomenon of the first hydraulic flap valve being blocked by lignite. At the same time, it can avoid the phenomenon of overflow of the upper quantitative bin 1. Compared with the manual control of the prior art, the accuracy and safety of the control of the lignite sealed discharge process are improved, and the use effect is good.

[0095] Step 2: Stop the flow of blue coke from the upper quantitative bin to the lower discharge bin

[0096] Step 201: Closing of the first hydraulic gate valve

[0097] When the second microwave level switch 23 detects that the level of the semi-coke in the upper quantitative bin 1 reaches the second set level, the controller 21 controls the piston rod of the first gate drive cylinder 6-1 to extend, driving the gate 4 of the first hydraulic gate valve to slide and close the first hydraulic gate valve;

[0098] Step 202: Closing of the first hydraulic flap valve

[0099] After the first hydraulic gate valve is closed, the controller 21 controls the piston rod of the first valve cover driving cylinder 11-1 to retract, closes the valve cover 10 of the first hydraulic flap valve, and the semi-coke in the upper quantitative bin 1 stops flowing into the lower discharge bin 2;

[0100] In this embodiment, the second set material level height is the lowest value of the material level in the upper quantitative bin 1 pre-set in the controller 21, and the second microwave material level switch 23 is fixedly installed on the inner wall of the upper quantitative bin 1. The vertical distance between the installation height of the second microwave material level switch 23 and the discharge port of the upper quantitative bin 1 ranges from 200mm to 300mm. The material level in the upper quantitative bin 1 can be fed back to the controller 21 in real time through the second microwave material level switch 23. When the second microwave material level switch 23 detects that the material level of the semi-coke in the upper quantitative bin 1 reaches the second set material level height, the controller 21 controls the piston rod of the first gate drive cylinder 6-1 to extend, drive the gate 4 of the first hydraulic gate valve to slide, and close the first hydraulic gate valve, so as to stop the semi-coke from the upper quantitative bin. 1 is the first step of circulating the lignite from the upper quantitative bin 1 to the lower discharge bin 2; because when stopping the circulation of lignite from the upper quantitative bin 1 to the lower discharge bin 2, the lignite in the upper quantitative bin 1 can be stopped from circulating from the upper quantitative bin 1 to the lower discharge bin 2 only after the first hydraulic gate valve is closed, therefore, the first hydraulic gate valve should be closed first, and after the first hydraulic gate valve is closed, the first hydraulic flap valve is closed, and the time interval between closing the first hydraulic flap valve and closing the first hydraulic gate valve is in the range of 5s to 10s. In actual use, if the first hydraulic flap valve is closed first, at this time, the lignite in the upper quantitative bin 1 will still flow from the upper quantitative bin 1 to the lower discharge bin 2 and enter the first hydraulic flap valve. At this time, the first hydraulic flap valve will be blocked by the lignite.

[0101] Step 3: Open the lower discharge bin to discharge the semi-coke

[0102] Step 301: Opening of the second hydraulic flap valve

[0103] After the first hydraulic flap valve is closed, the controller 21 controls the piston rod of the second valve cover driving cylinder 11 - 2 to extend, thereby opening the valve cover 10 of the second hydraulic flap valve;

[0104] Step 302: Opening of the second hydraulic gate valve

[0105] After the valve cover 10 of the second hydraulic flap valve is opened, the controller 21 controls the piston rod of the second gate drive cylinder 6-2 to retract, driving the gate 4 of the second hydraulic gate valve to slide, opening the second hydraulic gate valve, and the semi-coke in the lower discharge bin 2 begins to flow out;

[0106] In this embodiment, when starting to discharge the lignite from the lower discharge bin 2, it is necessary to open the second hydraulic flap valve first and then open the second hydraulic gate valve, and the time interval between opening the second hydraulic gate valve and opening the valve cover 10 of the second hydraulic flap valve is in the range of 5s to 10s, which can avoid the phenomenon of the second hydraulic flap valve being blocked by the lignite.

[0107] Step 4: Stop the discharge of semi-coke from the lower discharge bin

[0108] Step 401: Closing of the second hydraulic gate valve

[0109] When the third microwave level switch 24 detects that the level of the semi-coke in the lower discharge bin 2 reaches the third set level, the controller 21 controls the piston rod of the second gate drive cylinder 6-2 to extend, driving the gate 4 of the second hydraulic gate valve to slide and close the second hydraulic gate valve;

[0110] Step 402: Closing of the second hydraulic flap valve

[0111] After the second hydraulic gate valve is closed, the controller 21 controls the piston rod of the second valve cover driving cylinder 11-2 to retract, closes the valve cover 10 of the second hydraulic flap valve, and the semi-coke in the lower discharge bin 2 stops flowing out.

[0112] In this embodiment, the third set material level height is the lowest value of the material level in the lower discharge bin 2 pre-set in the controller 21, and the third microwave material level switch 24 is fixedly installed on the inner wall of the lower discharge bin 2. The vertical distance between the installation height of the third microwave material level switch 24 and the discharge port of the lower discharge bin 2 ranges from 200mm to 300mm. The material level in the lower discharge bin 2 can be fed back to the controller 21 in real time through the third microwave material level switch 24. When the third microwave material level switch 24 detects that the material level of the semi-coke in the lower discharge bin 2 reaches the third set material level height, the controller 21 controls the piston rod of the second gate drive cylinder 6-2 to extend, driving the gate 4 of the second hydraulic gate valve to slide, and closing the second hydraulic gate. Valve can realize the first step of stopping the outflow of lignite from the lower discharge bin 2; because when stopping the discharge of lignite from the lower discharge bin 2, the lignite in the lower discharge bin 2 can be stopped only after the second hydraulic gate valve is closed, therefore, the second hydraulic gate valve should be closed first, and after the second hydraulic gate valve is closed, the second hydraulic flap valve is closed, and the time interval between closing the second hydraulic flap valve and closing the second hydraulic gate valve is in the range of 5s to 10s. In actual use, if the second hydraulic flap valve is closed first, at this time, the lignite in the lower discharge bin 2 will still be discharged from the lower discharge bin 2 and enter the second hydraulic flap valve. At this time, the second hydraulic flap valve will be blocked by lignite.

[0113] In this embodiment, when the first hydraulic flap valve is opened in step 101, the third limit sensor 25-3 detects whether the extension amount of the piston rod of the first valve cover driving cylinder 11-1 reaches the second extension amount setting value. When the extension amount of the piston rod of the first valve cover driving cylinder 11-1 reaches the second extension amount setting value, step 102 is executed. When the extension amount of the piston rod of the first valve cover driving cylinder 11-1 does not reach the second extension amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled;

[0114] When the first hydraulic gate valve is opened in step 102, the first limit sensor 25-1 detects whether the retraction amount of the piston rod of the first gate drive cylinder 6-1 reaches the first retraction amount setting value. When the retraction amount of the piston rod of the first gate drive cylinder 6-1 reaches the first retraction amount setting value, step 2 is executed. When the retraction amount of the piston rod of the first gate drive cylinder 6-1 does not reach the first retraction amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled;

[0115] When the first hydraulic gate valve is closed in step 201, the first limit sensor 25-1 detects whether the extension amount of the piston rod of the first gate drive cylinder 6-1 reaches the first extension amount setting value. When the retraction amount of the piston rod of the first gate drive cylinder 6-1 reaches the first extension amount setting value, step 202 is executed. When the retraction amount of the piston rod of the first gate drive cylinder 6-1 does not reach the first extension amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled;

[0116] When the first hydraulic flap valve is closed in step 202, the third limit sensor 25-3 detects whether the retraction amount of the piston rod of the first valve cover driving cylinder 11-1 reaches the second retraction amount setting value. When the retraction amount of the piston rod of the first valve cover driving cylinder 11-1 reaches the second retraction amount setting value, step three is executed. When the retraction amount of the piston rod of the first valve cover driving cylinder 11-1 does not reach the second retraction amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled.

[0117] In this embodiment, when the second hydraulic flap valve is opened in step 301, the second limit sensor 25-2 detects whether the extension amount of the piston rod of the second valve cover driving cylinder 11-2 reaches the second extension amount setting value. When the extension amount of the piston rod of the second valve cover driving cylinder 11-2 reaches the second extension amount setting value, step 302 is executed. When the extension amount of the piston rod of the second valve cover driving cylinder 11-2 does not reach the second extension amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled.

[0118] When the second hydraulic gate valve is opened in step 302, the fourth limit sensor 25-4 detects whether the retraction amount of the piston rod of the second gate drive cylinder 6-2 reaches the first retraction amount setting value. When the retraction amount of the piston rod of the second gate drive cylinder 6-2 reaches the first retraction amount setting value, step 4 is executed. When the retraction amount of the piston rod of the second gate drive cylinder 6-2 does not reach the first retraction amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled;

[0119] When the second hydraulic gate valve is closed in step 401, the fourth limit sensor 25-4 detects whether the extension amount of the piston rod of the second gate drive cylinder 6-2 reaches the first extension amount setting value. When the retraction amount of the piston rod of the second gate drive cylinder 6-2 reaches the first extension amount setting value, step 402 is executed. When the retraction amount of the piston rod of the second gate drive cylinder 6-2 does not reach the first extension amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled;

[0120] When the second hydraulic flap valve is closed in step 402, the second limit sensor 25-2 detects whether the retraction amount of the piston rod of the second valve cover driving cylinder 11-2 reaches the second retraction amount setting value. When the retraction amount of the piston rod of the second valve cover driving cylinder 11-2 reaches the second retraction amount setting value, the lignite in the lower discharge bin 2 stops flowing out. When the retraction amount of the piston rod of the second valve cover driving cylinder 11-2 does not reach the second retraction amount setting value, the discharge port of the upper quantitative bin 1 and the discharge port of the lower discharge bin 2 are closed, and the system is overhauled.

[0121] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A blue coke sealing discharging system for a composite furnace quenching equipment, characterized by: The invention comprises a discharge device and a control device connected to the discharge device, wherein the discharge device comprises an upper quantitative bin (1) connected to a scraper conveyor and a lower discharge bin (2) located directly below the upper quantitative bin (1) and connected to the upper quantitative bin (1), the discharge port of the upper quantitative bin (1) is equipped with a first hydraulic gate valve, a first hydraulic flap valve is connected directly below the first hydraulic gate valve, the discharge port of the lower discharge bin (2) is equipped with a second hydraulic gate valve having the same structure as the first hydraulic gate valve, a second hydraulic flap valve is connected directly below the second hydraulic gate valve, and a second hydraulic flap valve having the same structure as the first hydraulic flap valve is connected directly below the second hydraulic gate valve. The first hydraulic gate valve and the second hydraulic gate valve both comprise a gate valve body, a gate plate (4) slidably mounted on the gate valve body, the gate plate (4) of the first hydraulic gate valve is driven by a first gate plate driving oil cylinder (6-1), and the gate plate (4) of the second hydraulic gate valve is driven by a second gate plate driving oil cylinder (6-2), the first hydraulic flap valve and the second hydraulic flap valve both comprise a flap valve body (7), a discharge pipe (8) mounted on the flap valve body (7) and having its bottom end extending into the interior of the flap valve body (7), and a discharge pipe (8) arranged in the interior of the flap valve body (7) for opening or closing the discharge pipe (8). The valve cover (10) of the material pipeline (8) and a connecting rod transmission mechanism connected to the valve cover (10), the valve cover (10) of the first hydraulic flap valve is driven by a first valve cover driving cylinder (11-1), and the valve cover (10) of the second hydraulic flap valve is driven by a second valve cover driving cylinder (11-2), the bottom end of the discharge pipeline (8) is inclined, a fixing ring (8-1) is fixedly installed at the bottom end of the discharge pipeline (8), a rubber sealing ring (9) is fixedly installed on the fixing ring (8-1), a rubber sealing sleeve (20) is sleeved on the valve cover (10), and the control device includes a controller (21), a valve cover (10) installed on the valve cover (10), and a valve cover (10) provided on the valve cover (10). A first microwave material level switch (22) and a second microwave material level switch (23) are installed in the upper quantitative bin (1), and a third microwave material level switch (24) is installed in the lower discharge bin (2), wherein the first microwave material level switch (22), the second microwave material level switch (23) and the third microwave material level switch (24) are all connected to the input end of the controller (21), and the first gate drive cylinder (6-1), the second gate drive cylinder (6-2), the first valve cover drive cylinder (11-1) and the second valve cover drive cylinder (11-2) are all connected to the output end of the controller (21).

2. A blue coke sealed discharging system for a composite furnace quenching equipment according to claim 1, characterized in that: The gate valve body comprises a rectangular frame (3-1) and a flange (3-2) arranged on the bottom surface of the rectangular frame (3-1); a rib plate (3-3) is arranged between the rectangular frame (3-1) and the flange (3-2); a fixing rod (5) is fixedly mounted on the gate (4); the piston rod of the first gate drive cylinder (6-1) is hingedly mounted on the fixing rod (5) of the first hydraulic gate valve; the piston rod of the second gate drive cylinder (6-2) is hingedly mounted on the fixing rod (5) of the second hydraulic gate valve; and a connecting flange (8-2) for fixedly connecting to the flange (3-2) is arranged at the top end of the discharge pipe (8).

3. A blue coke sealed discharging system for composite furnace quenching equipment according to claim 1, characterized in that: The flap valve body (7) is a cubic hollow valve body with an opening at the bottom end, a manhole (7-1-1) is arranged on the first side wall (7-1) of the cubic hollow valve body, a fixing seat (7-2-1) is arranged on the outer surface of the second side wall (7-2) of the cubic hollow valve body, a cylinder support (12) is installed on the fixing seat (7-2-1), the cylinder body of the first valve cover driving cylinder (11-1) is hingedly installed on the cylinder support (12) of the first hydraulic flap valve, and the cylinder body of the second valve cover driving cylinder (11-2) is hingedly installed on the cylinder support (12) of the second hydraulic flap valve.

4. A blue coke sealed discharging system for composite furnace coke quenching equipment according to claim 3, characterized in that: The connecting rod transmission mechanism comprises a first connecting rod frame (13) arranged on the outside of the second side wall (7-2), a rotating shaft (14) connected to the first connecting rod frame (13), and a second connecting rod frame (16) installed on the rotating shaft (14), wherein the rotating shaft (14) passes through the first side wall (7-1) and the second side wall (7-2), the top end of the first connecting rod frame (13) is fixedly installed on the rotating shaft (14), and the second connecting rod frame (16) is located at the hollow center of the cube. Inside the valve body, both ends of the rotating shaft (14) are provided with seat bearings (15), and the two seat bearings (15) are respectively installed on the first side wall (7-1) and the second side wall (7-2), and the piston rod of the first valve cover driving cylinder (11-1) is hingedly installed on the bottom end of the first connecting rod frame (13) of the first hydraulic flap valve, and the piston rod of the second valve cover driving cylinder (11-2) is hingedly installed on the bottom end of the first connecting rod frame (13) of the second hydraulic flap valve.

5. A blue coke sealed discharging system for composite furnace quenching equipment according to claim 4, characterized in that: A mounting plate (17) is fixedly mounted on the second connecting rod frame (16), a ball pin (18) is fixedly mounted on the mounting plate (17), and the valve cover (10) is connected to the ball pin (18) via a first clamping plate (19-1) and a second clamping plate (19-2).

6. A blue coke sealed discharging system for a composite furnace quenching equipment according to claim 2, characterized in that: A first limit sensor (25-1) for detecting the telescopic position of the piston rod of the first gate drive cylinder (6-1) is installed on the rectangular frame of the first hydraulic gate valve, a second limit sensor (25-2) for detecting the telescopic position of the piston rod of the second gate drive cylinder (6-2) is installed on the rectangular frame of the second hydraulic gate valve, a third limit sensor (25-3) for detecting the telescopic position of the piston rod of the first valve cover drive cylinder (11-1) is installed on the valve body of the first hydraulic flap valve, and a fourth limit sensor (25-4) for detecting the telescopic position of the piston rod of the second valve cover drive cylinder (11-2) is installed on the valve body of the second hydraulic flap valve; the first limit sensor (25-1), the second limit sensor (25-2), the third limit sensor (25-3) and the fourth limit sensor (25-4) are all connected to the input end of the controller (21).

7. A method for controlling the sealed discharging process of blue coke using the blue coke sealed discharging system according to claim 6, characterized in that: The method comprises the following steps: Step 1: Start the flow of blue coke from the upper quantitative bin to the lower discharge bin Step 101: Opening of the first hydraulic flap valve A scraper conveyor is used to load blue coke into the upper quantitative bin (1), and a first microwave material level switch (22) detects in real time the material level of blue coke loaded in the upper quantitative bin (1). When the first microwave material level switch (22) detects that the material level of blue coke loaded in the upper quantitative bin (1) reaches a first set material level, a controller (21) controls the piston rod of the first valve cover driving cylinder (11-1) to extend, thereby opening the valve cover (10) of the first hydraulic flap valve. Step 102: Opening of the first hydraulic gate valve After the valve cover (10) of the first hydraulic flap valve is opened, the controller (21) controls the piston rod of the first gate drive cylinder (6-1) to retract, driving the gate (4) of the first hydraulic gate valve to slide, thereby opening the first hydraulic gate valve, and the semi-coke in the upper quantitative bin (1) begins to flow into the lower discharge bin (2); Step 2: Stop the flow of blue coke from the upper quantitative bin to the lower discharge bin Step 201: Closing of the first hydraulic gate valve When the second microwave material level switch (23) detects that the material level of the semi-coke in the upper quantitative bin (1) reaches a second set material level, the controller (21) controls the piston rod of the first gate drive cylinder (6-1) to extend, driving the gate (4) of the first hydraulic gate valve to slide, thereby closing the first hydraulic gate valve; Step 202: Closing of the first hydraulic flap valve After the first hydraulic gate valve is closed, the controller (21) controls the piston rod of the first valve cover driving cylinder (11-1) to retract, closing the valve cover (10) of the first hydraulic flap valve, and the semi-coke in the upper quantitative bin (1) stops flowing into the lower discharge bin (2); Step 3: Open the lower discharge bin to discharge the semi-coke Step 301: Opening of the second hydraulic flap valve After the first hydraulic flap valve is closed, the controller (21) controls the piston rod of the second valve cover driving cylinder (11-2) to extend, thereby opening the valve cover (10) of the second hydraulic flap valve; Step 302: Opening of the second hydraulic gate valve After the valve cover (10) of the second hydraulic flap valve is opened, the controller (21) controls the piston rod of the second gate drive cylinder (6-2) to retract, driving the gate (4) of the second hydraulic gate valve to slide, opening the second hydraulic gate valve, and the semi-coke in the lower discharge bin (2) begins to flow out; Step 4: Stop the discharge of semi-coke from the lower discharge bin Step 401: Closing of the second hydraulic gate valve When the third microwave material level switch (24) detects that the material level of the semi-coke in the lower discharge bin (2) reaches a third set material level, the controller (21) controls the piston rod of the second gate drive cylinder (6-2) to extend, driving the gate (4) of the second hydraulic gate valve to slide, thereby closing the second hydraulic gate valve; Step 402: Closing of the second hydraulic flap valve After the second hydraulic gate valve is closed, the controller (21) controls the piston rod of the second valve cover driving cylinder (11-2) to retract, closing the valve cover (10) of the second hydraulic flap valve, and the semi-coke in the lower discharge bin (2) stops flowing out.

8. The method according to claim 7, characterized in that: When the first hydraulic flap valve is opened in step 101, the third limit sensor (25-3) detects whether the extension amount of the piston rod of the first valve cover driving cylinder (11-1) reaches the second extension amount setting value. When the extension amount of the piston rod of the first valve cover driving cylinder (11-1) reaches the second extension amount setting value, step 102 is executed. When the extension amount of the piston rod of the first valve cover driving cylinder (11-1) does not reach the second extension amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled. When the first hydraulic gate valve is opened in step 102, the first limit sensor (25-1) detects whether the retraction amount of the piston rod of the first gate drive cylinder (6-1) reaches the first retraction amount setting value. When the retraction amount of the piston rod of the first gate drive cylinder (6-1) reaches the first retraction amount setting value, step 2 is executed. When the retraction amount of the piston rod of the first gate drive cylinder (6-1) does not reach the first retraction amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled. When the first hydraulic gate valve is closed in step 201, the first limit sensor (25-1) detects whether the extension amount of the piston rod of the first gate drive cylinder (6-1) reaches the first extension amount setting value. When the retraction amount of the piston rod of the first gate drive cylinder (6-1) reaches the first extension amount setting value, step 202 is executed. When the retraction amount of the piston rod of the first gate drive cylinder (6-1) does not reach the first extension amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled. When the first hydraulic flap valve is closed in step 202, the third limit sensor (25-3) detects whether the retraction amount of the piston rod of the first valve cover driving cylinder (11-1) reaches the second retraction amount setting value. When the retraction amount of the piston rod of the first valve cover driving cylinder (11-1) reaches the second retraction amount setting value, step three is executed. When the retraction amount of the piston rod of the first valve cover driving cylinder (11-1) does not reach the second retraction amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled.

9. The method according to claim 8, characterized in that: When the second hydraulic flap valve is opened in step 301, the second limit sensor (25-2) detects whether the extension amount of the piston rod of the second valve cover driving cylinder (11-2) reaches the second extension amount setting value. When the extension amount of the piston rod of the second valve cover driving cylinder (11-2) reaches the second extension amount setting value, step 302 is executed. When the extension amount of the piston rod of the second valve cover driving cylinder (11-2) does not reach the second extension amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled. When the second hydraulic gate valve is opened in step 302, the fourth limit sensor (25-4) detects whether the retraction amount of the piston rod of the second gate drive oil cylinder (6-2) reaches the first retraction amount setting value. When the retraction amount of the piston rod of the second gate drive oil cylinder (6-2) reaches the first retraction amount setting value, step 4 is executed. When the retraction amount of the piston rod of the second gate drive oil cylinder (6-2) does not reach the first retraction amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled. When the second hydraulic gate valve is closed in step 401, the fourth limit sensor (25-4) detects whether the extension amount of the piston rod of the second gate drive cylinder (6-2) reaches the first extension amount setting value. When the retraction amount of the piston rod of the second gate drive cylinder (6-2) reaches the first extension amount setting value, step 402 is executed. When the retraction amount of the piston rod of the second gate drive cylinder (6-2) does not reach the first extension amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled. When the second hydraulic flap valve is closed in step 402, the second limit sensor (25-2) detects whether the retraction amount of the piston rod of the second valve cover driving cylinder (11-2) reaches the second retraction amount setting value. When the retraction amount of the piston rod of the second valve cover driving cylinder (11-2) reaches the second retraction amount setting value, the lignite in the lower discharge bin (2) stops flowing out. When the retraction amount of the piston rod of the second valve cover driving cylinder (11-2) does not reach the second retraction amount setting value, the discharge port of the upper quantitative bin (1) and the discharge port of the lower discharge bin (2) are closed, and the system is overhauled.

Images