Semi-coke dry quenching device

Abstract

The utility model relates to the field of coke quenching, in particular to a semi-coke dry quenching device which comprises a coke bin, the multiple coke discharging boxes are detachably connected to the upper surface of the coke bin at equal intervals, the coke discharging boxes are vertically through, and coke falling openings are formed in the positions, below the coke discharging boxes, of the top of the coke bin; the coke pushing rack is connected in the coke bin in a sliding manner; due to the adoption of closed steam and atomization dry type coke quenching, the problem that too much water vapor is generated when too much water is needed for coke quenching is effectively solved, the purpose that the semicoke is cooled to 200 DEG C or below through one-step coke quenching cooling of the steam is achieved, generation of effective gas components can be increased by using the steam, and the coke quenching efficiency is improved. And the temperature of the semicoke is reduced to 60-70 DEG C through spraying, so that excessive gas cannot be generated by water and the cooled semicoke, thereby effectively reducing the moisture of the semicoke, reducing the water consumption, controlling dust and increasing the calorific value of the semicoke.

Description

Technical Field

[0001] The utility model relates to the field of coke quenching, in particular to a semi-coke dry quenching device. Background Art

[0002] Semi-coke, also known as blue coke, is a solid carbonaceous product with low sulfur, low ash and high calorific value obtained by dry distillation of low-rank coals such as peat, lignite and high-volatile bituminous coal under medium and low temperature conditions. Semi-coke is widely used in the fields of chemical industry, metallurgy, electric power, heat supply, civil briquette, sewage treatment, preparation of electrode materials, etc. In the production process of semi-coke, it is necessary to cool the high-temperature semi-coke to a temperature convenient for transportation and storage. Usually, the cooling operation process of red coke is called coke quenching. Through the coke quenching process, the semi-coke is cooled to below 150°C. With the adjustment of the blue coke industrial policy, the coke quenching method has changed from traditional wet coke quenching to low-moisture coke quenching, which overcomes the deficiencies of the traditional wet coke discharging process such as wasting resources, polluting the environment and poor quality of blue coke. However, the low-moisture coke quenching technology still has the disadvantages of high moisture content of semi-coke, unstable product quality, low effective gas components in the raw gas, ineffective recovery and utilization of the waste heat of semi-coke, and relatively large environmental pollution problems. Summary of the Utility Model

[0003] The utility model provides a semi-coke dry quenching device, which solves the problems of low calorific value of semi-coke and serious pollution caused by a large amount of gas generated during semi-coke quenching, realizes segmented coke quenching, and achieves water saving and improvement of the utilization value of semi-coke.

[0004] The technical problems solved by the utility model can be realized by adopting the following technical solutions:

[0005] A semi-coke dry quenching device includes:

[0006] A coke bin;

[0007] A number of coke discharging boxes, which are detachably connected to the upper surface of the coke bin at equal intervals, and the coke discharging boxes are through from top to bottom, and coke dropping ports are opened at the top of the coke bin below the coke discharging boxes;

[0008] A coke pushing frame, which is slidably connected in the coke bin;

[0009] A coke supporting tray, which is arranged directly below the coke discharging box, and both ends of the coke supporting tray are fixed to the side wall surfaces on both sides in the coke bin, and the coke pushing frame is located between the coke supporting tray and the coke discharging box;

[0010] A spraying system, which is detachably connected outside the coke bin and is communicated with the inside of the coke bin;

[0011] A steam coke quenching part, which is arranged outside the coke bin and is communicated with a number of coke discharging boxes;

[0012] Scraper conveyor, one end of which is detachably connected below the coke bin, and the scraper conveyor is located below the coke discharging box;

[0013] Intermediate bin, the top end of which is located below the other end of the scraper conveyor;

[0014] Coke discharging bin, which is arranged below the intermediate bin;

[0015] Lower valve, which is detachably connected to the discharging port at the bottom end of the coke discharging bin.

[0016] Furthermore, one end of the coke pushing frame is detachably connected with a coke pusher, the driving end of the coke pusher is hinged with a connecting rod, and the other end of the connecting rod is hinged with the coke pushing frame.

[0017] Furthermore, an upper valve is detachably connected to the discharging port at the bottom end of the intermediate bin, and the bottom end of the upper valve is hermetically connected to the top end of the coke discharging bin.

[0018] Furthermore, the coke discharging bin has a pair of discharging ports, and a guiding slope with a narrow top and a wide bottom is arranged between the pair of discharging ports. The top end of the guiding slope is located directly below the discharging port of the intermediate bin, and a lower valve is detachably connected to the discharging port of the coke discharging bin.

[0019] Furthermore, the steam coke quenching part includes an inlet pipe, branch pipes, nozzle 1 and an electromagnetic valve. The inlet pipe is arranged outside the coke bin. Nozzle 1 is detachably connected to one side of several coke discharging boxes. Nozzle 1 is communicated with the coke discharging box. A branch pipe is communicated between nozzle 1 and the inlet pipe, and an electromagnetic valve is connected in series on the branch pipe.

[0020] Furthermore, the spraying system consists of a pair of spraying units. The pair of spraying units are detachably connected to both sides of the coke bin. The spraying unit includes a water inlet pipe, a swivel joint and nozzle 2. The water inlet pipe is detachably connected to the side of the coke bin. Nozzle 2 is detachably connected to the side of the coke bin, and one end of nozzle 2 extends into the coke bin. The other end of nozzle 2 is communicated with the water inlet pipe through the swivel joint.

[0021] Furthermore, a conveying and sealing chamber is detachably connected to the lower surface of the coke bin. The other end of the conveying and sealing chamber extends above the intermediate bin. The lower surface of the coke bin is communicated with the inside of the conveying and sealing chamber. A sealing cover is detachably connected to the top end of the intermediate bin. A feeding port is opened at the top end of the sealing cover. A feeding bin is detachably connected to the feeding port. One side of the feeding bin is communicated with the other end of the conveying and sealing chamber. The scraper conveyor is located inside the conveying and sealing chamber, and the other end of the scraper conveyor passes through the conveying and sealing chamber and extends into the feeding bin.

[0022] The beneficial effects of the present utility model are as follows: By adopting the closed steam + atomized dry coke quenching, the problem of excessive water vapor generated when too much water is needed for coke quenching is effectively solved. Furthermore, the coke is first quenched and cooled by steam, reducing the semi-coke to below 200°C. By using steam, the generation of effective gas components can be increased, and then the semi-coke is reduced to 60 - 70°C by spraying, so that the water and the cooled semi-coke do not generate excessive gas, thereby effectively reducing the moisture content of the semi-coke, reducing water consumption, controlling dust, and increasing the calorific value of the semi-coke.

[0023] By adopting a coke bin, a conveying sealed cabin, and a blanking bin, the problem of the gas generated during coke quenching spreading in all directions is effectively solved. Furthermore, the sealing during the coke quenching and conveying processes is realized, preventing the gas from spreading.

[0024] By adopting an intermediate bin and a coke discharging bin, the problem of a large amount of gas overflowing when the semi-coke is discharged is effectively solved. Furthermore, through the interlocking control of the upper valve and the lower valve, the upper valve and the lower valve open and close alternately, achieving the purpose of locking gas to prevent leakage. Description of the Drawings

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 It is a schematic structural diagram of the present utility model.

[0027] Figure 2 It is a top view of the present utility model.

[0028] Figure 3 It is a schematic diagram of the position of the coke pushing rack and the coke supporting tray of the present utility model.

[0029] In the figure: 1 - coke bin; 2 - coke discharging box; 3 - coke pushing rack; 4 - coke supporting tray; 5 - scraper conveyor; 6 - intermediate bin; 7 - lower valve; 8 - coke pusher; 9 - connecting rod; 10 - upper valve; 11 - intake pipe; 12 - branch pipe; 13 - first spray head; 14 - solenoid valve; 15 - water inlet pipe; 16 - adapter; 17 - second spray head; 18 - conveying sealed cabin; 19 - sealing cover; 20 - blanking bin; 21 - guiding slope; 22 - coke discharging bin. Detailed Embodiments

[0030] Embodiment 1:

[0031] Referring to Figures 1-3 , which is a schematic structural diagram of Embodiment 1 of the present utility model, a semi-coke dry coke quenching device, comprising:

[0032] Coke bin 1;

[0033] A plurality of coke discharging boxes 2, the plurality of coke discharging boxes 2 are detachably connected to the upper surface of the coke bin 1 at equal intervals, and the coke discharging boxes 2 are vertically through, and dropping coke openings are provided at the top of the coke bin 1 below the coke discharging boxes 2;

[0034] The coke pushing rack 3 is slidably connected in the coke bin 1;

[0035] The coke supporting tray 4 is arranged directly below the coke discharging box 2, and both ends of the coke supporting tray 4 are fixed to the two side wall surfaces inside the coke bin 1, and the coke pushing rack 3 is located between the coke supporting tray 4 and the coke discharging box 2;

[0036] The spraying system is detachably connected outside the coke bin 1 and is communicated with the inside of the coke bin 1;

[0037] The steam coke quenching part is arranged outside the coke bin 1 and is communicated with a plurality of coke discharging boxes 2;

[0038] The scraper conveyor 5 has one end detachably connected below the coke bin 1, and the scraper conveyor 5 is located below the coke discharging box 2;

[0039] The intermediate bin 6 has its top end located below the other end of the scraper conveyor 5;

[0040] The coke discharging bin 22 is arranged below the intermediate bin 6;

[0041] The lower valve 7 is detachably connected to the discharging port at the bottom end of the coke discharging bin 22.

[0042] During actual use: The high-temperature semicoke is sent into the coke discharging box 2 through the previous process and falls on the coke supporting tray 4. The number of coke discharging boxes 2 can be increased according to different processing capacities. At the same time, the steam coke quenching part is turned on to cool down the high-temperature semicoke in a plurality of coke discharging boxes 2, and the temperature of the semicoke is reduced to within 200 °C. Then, the reciprocating movement of the coke pushing rack 3 is controlled, so that the coke pushing rack 3 pushes the semicoke on the coke supporting tray 4 to move, and the semicoke on the coke supporting tray 4 falls into the coke bin 1. At the same time, the spraying system is turned on to cool down the semicoke again, so that the temperature is reduced to 60 - 70 °C to reach the conveying standard. The semicoke falls onto the scraper conveyor 5 through spraying and cooling, is conveyed to the intermediate bin 6 through the scraper conveyor 5, and then enters the coke discharging bin 22 through the intermediate bin 6. By controlling the lower valve 7, the semicoke is controlled to enter the next process to complete coke quenching.

[0043] In this embodiment, observation windows are detachably connected to both sides of the coke bin 1.

[0044] Embodiment 2:

[0045] Referring to Figures 1-2 , the difference of this embodiment is that: One end of the coke pushing rack 3 is detachably connected with a coke pusher 8, the driving end of the coke pusher 8 is hinged with a connecting rod 9, and the other end of the connecting rod 9 is hinged with the coke pushing rack 3.

[0046] During actual use: The pusher machine 8 drives the connecting rod 9 to drive the pusher frame 3 to move, thereby realizing automatic control. By the operation of the pusher machine 8, the pusher frame 3 reciprocates, so that the semi-coke is pushed into the coke bin 1.

[0047] At the same time, according to the operating conditions of the carbonization furnace, the frequency can be adjusted to change the rotation speed, thereby adjusting the coke discharge amount, meeting the requirements of different coke discharges of the carbonization furnace, and having the effect of energy saving.

[0048] In this embodiment, the pusher frame 3 is cooled by circulating water, thereby reducing the temperatures of the coke supporting tray 4 and the pusher frame 3 and preventing the high temperature from affecting the sealing effect.

[0049] Embodiment 3:

[0050] Refer to Figures 1-2 In this embodiment, the difference is that: a top valve 10 is detachably connected to the bottom discharge port of the intermediate bin 6, and the bottom end of the top valve 10 is hermetically connected to the top end of the coke discharging bin 22.

[0051] During actual use: When the intermediate bin 6 stores a preset amount of semi-coke, the top valve 10 is opened, and the semi-coke is discharged into the coke discharging bin 22, and then the top valve 10 is closed to reduce gas overflow.

[0052] Embodiment 4:

[0053] Refer to Figures 1-2 In this embodiment, the difference is that: the coke discharging bin 22 has a pair of discharge ports, and a guiding slope 21 that is narrow at the top and wide at the bottom is provided between the pair of discharge ports. The top end of the guiding slope 21 is located directly below the discharge port of the intermediate bin 6, and a bottom valve 7 is detachably connected to the discharge port of the coke discharging bin 22.

[0054] During actual use: The bottom valve 7 of the coke discharging bin 22 is opened, and the semi-coke is sent to the next process. During use, a pair of conveyor belts are installed below the coke discharging bin 22, and diversion can be carried out through the guiding slope 21.

[0055] Embodiment 5:

[0056] Refer to Figures 1-2 In this embodiment, the difference is that: the steam coke quenching part includes an inlet pipe 11, a branch pipe 12, a first spray head 13 and an electromagnetic valve 14. The inlet pipe 11 is arranged outside the coke bin 1. A first spray head 13 is detachably connected to one side of each of a plurality of coke discharging boxes 2. The first spray head 13 is communicated with the coke discharging box 2. A branch pipe 12 is communicated between the first spray head 13 and the inlet pipe 11, and an electromagnetic valve 14 is connected in series on the branch pipe 12.

[0057] During actual use: The pressurized steam enters the coke discharging box 2 through the inlet pipe 11, the branch pipe 12, the solenoid valve 14 and the first nozzle 13, and undergoes a water gasification reaction with the high-temperature semi-coke. At the same time, the temperature of the semi-coke is higher than that of the steam, thereby achieving a cooling effect. Since the steam has a temperature, the temperature difference with the high-temperature semi-coke is reduced. At the same time, the high-temperature semi-coke can be reduced to below 200 °C, and the generated gas enters the furnace.

[0058] In this embodiment, each coke discharging box can be equipped with multiple first nozzles 13 to enable the semi-coke to fully contact with the steam, thereby ensuring the cooling effect. At the same time, the on-off can be controlled through the solenoid valve 14 to achieve the control of each first nozzle 13.

[0059] Embodiment 6:

[0060] Refer to Figures 1-2 , the difference of this embodiment is that: the spraying system includes a pair of spraying units, and the pair of spraying units are detachably connected to both sides of the coke bin 1. The spraying unit includes an inlet pipe 15, a swivel joint 16 and a second nozzle 17. The inlet pipe 15 is detachably connected to the side of the coke bin 1, the second nozzle 17 is detachably connected to the side of the coke bin 1, and one end of the second nozzle 17 extends into the coke bin 1. The other end of the second nozzle 17 is communicated with the inlet pipe 15 through the swivel joint 16.

[0061] During actual use: Water is fed into the coke bin 1 through the inlet pipe 15, the swivel joint 16 and the second nozzle 17 under pressure, and at the same time, it is atomized through the second nozzle 17 to reduce the temperature of the semi-coke to reduce the temperature of the semi-coke to 60 - 70 °C. Since the semi-coke has been cooled by steam, the amount of sprayed water can be reduced, thereby effectively reducing the moisture content of the semi-coke, reducing the water consumption, controlling the dust, and increasing the calorific value of the semi-coke.

[0062] In this embodiment, a solenoid valve can be installed between the swivel joint 16 and the second nozzle 17 to achieve the individual control of the second nozzle 17. The number of opened second nozzles 17 can be controlled as appropriate according to the amount of semi-coke, and at the same time, the spraying amount can be controlled according to the temperature in the coke bin 1 to meet the coke quenching requirements.

[0063] In this embodiment, the spraying position of the second nozzle 17 is avoided from the coke dropping port.

[0064] Embodiment 7:

[0065] Refer to Figures 1-2, the difference in this embodiment is that: a conveying and sealing chamber 18 is detachably connected to the lower surface of the coke bin 1, the other end of the conveying and sealing chamber 18 extends above the intermediate bin 6, the lower surface of the coke bin 1 is communicated with the inside of the conveying and sealing chamber 18, a sealing cover 19 is detachably connected to the top end of the intermediate bin 6, a blanking port is opened at the top end of the sealing cover 19, a blanking bin 20 is detachably connected to the blanking port, one side of the blanking bin 20 is communicated with the other end of the conveying and sealing chamber 18, the scraper conveyor 5 is located inside the conveying and sealing chamber 18, and the other end of the scraper conveyor 5 passes through the conveying and sealing chamber 18 and extends into the blanking bin 20.

[0066] During actual use: Since a small amount of gas generated by steam and semicoke will enter the coke bin, and at the same time, gas will also be generated when the semicoke is sprayed through the second nozzle 17. To ensure that the generated gas overflows, the scraper conveyor 5 is wrapped by the conveying and sealing chamber 18 and is hermetically connected to the coke bin 1 so that the gas will not overflow.

[0067] In this embodiment, one end of the conveying and sealing chamber 18 is higher than the lower end of the coke bin 1, and this end is used to install the driving source of the scraper conveyor 5, such as a motor, etc. At the same time, a water seal bend is provided at this end, and a water seal device is provided between the other end of the scraper conveyor 5 and the conveying and sealing chamber 18.

[0068] Embodiment 8:

[0069] Referring to Figures 1-3 , a method for dry quenching of semicoke, at least including the above-mentioned dry quenching device for semicoke, further includes the following steps:

[0070] The first step is that the semicoke falls into the coke discharging box 2, and at the same time, hot steam is sprayed into the coke discharging box 2 through the branch pipe 12, solenoid valve 14 and first nozzle 13 of the inlet pipe 11 for steam quenching, and the steam entering the coke discharging box 2 is controlled by the solenoid valve 14. At the same time, the semicoke falls on the coke supporting tray 4.

[0071] The second step is to start the coke pusher 8. The coke pusher 8 drives the coke pusher frame 3 to reciprocate through the connecting rod 9, so that the semicoke between the coke supporting tray 4 and the coke discharging box 2 is pushed off from the coke supporting tray 4, and the semicoke enters the coke bin 1. At the same time, water is supplied through the water inlet pipe 15, and the semicoke is sprayed again through the adapter 16 and the second nozzle 17 to complete quenching.

[0072] The third step is to start the scraper conveyor 5. The scraper conveyor 5 receives the semicoke falling from the coke discharging box 2, and conveys the falling semicoke above the intermediate bin 6 through the scraper conveyor 5 and drops it into the intermediate bin 6.

[0073] The fourth step is to open the upper valve 10. The semicoke in the intermediate bin 6 enters the coke discharging bin 22 through the upper valve 10, the upper valve 10 is closed, and then the lower valve 7 of the coke discharging bin 22 is opened to discharge, completing coke discharging.

[0074] During actual use: The semi-coke falls into the coke discharging box 2. Meanwhile, hot steam is sprayed into the coke discharging box 2 through the branch pipe 12, solenoid valve 14 and nozzle 1 by the intake pipe 11 for steam quenching of coke, and the entry of steam into the coke discharging box 2 is controlled by the solenoid valve 14. Meanwhile, the semi-coke lands on the coke supporting tray 4. Start the coke pusher 8, and the coke pusher 8 drives the coke pushing frame 3 to reciprocate through the connecting rod 9, so that the semi-coke between the coke supporting tray 4 and the coke discharging box 2 is pushed off the coke supporting tray 4. The semi-coke enters the coke bin 1. Meanwhile, water is supplied through the water inlet pipe 15, and then the semi-coke is sprayed again through the adapter 16 and nozzle 2 to complete the coke quenching. Start the scraper conveyor 5. The scraper conveyor 5 receives the semi-coke falling from the coke discharging box 2, and conveys the falling semi-coke above the intermediate bin 6 through the scraper conveyor 5 and then it falls into the intermediate bin 6. Open the upper valve 10. The semi-coke in the intermediate bin 6 enters the coke discharging bin 22 through the upper valve 10. The upper valve 10 is closed, and then it is discharged through the lower valve 7 of the coke discharging bin 22 to complete the coke discharging.

[0075] In this embodiment, material meters are arranged in the intermediate bin 6 and the coke discharging bin 22, which can obtain the amount of semi-coke, facilitate the discharging of semi-coke and the interlocking control with the coke pusher 8 and the scraper conveyor 5, and prevent the problem of excessive accumulation of semi-coke.

[0076] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model, and they are all within the protection scope of this technology.

Claims

1. A semi-coke dry quenching device, characterized in that: include: Jiaocang (1); A plurality of coke discharge boxes (2), wherein the plurality of coke discharge boxes (2) are equidistantly and detachably connected to the upper surface of the coke bin (1), the coke discharge boxes (2) are connected vertically, and a coke discharge opening is provided at the top of the coke bin (1) and below the coke discharge boxes (2); A coke pushing frame (3), the coke pushing frame (3) being slidably connected in the coke bin (1); A focus supporting plate (4), the focus supporting plate (4) being arranged directly below the coke discharge box (2), and the two ends of the focus supporting plate (4) being respectively fixed to the side walls of the coke bin (1), and the coke pushing frame (3) being located between the focus supporting plate (4) and the coke discharge box (2); A spray system, the spray system being detachably connected to the outside of the coke bin (1), and the spray system being in communication with the inside of the coke bin (1); A steam quenching section, which is arranged outside the coke bin (1) and is connected to a plurality of coke discharge boxes (2); A scraper (5), one end of which is detachably connected to the bottom of the coke bin (1), and the scraper (5) is located below the coke discharge box (2); An intermediate bin (6), the top end of which is located below the other end of the scraper (5); A coke outlet bin (22), the coke outlet bin (22) being arranged below the intermediate bin (6); A lower valve (7) is detachably connected to a discharge port at the bottom end of the coke discharge bin (22).

2. A semi-coke dry quenching device according to claim 1, characterized in that: One end of the coke pushing frame (3) is detachably connected to a coke pushing machine (8), a driving end of the coke pushing machine (8) is hingedly connected to a connecting rod (9), and the other end of the connecting rod (9) is hingedly connected to the coke pushing frame (3).

3. A semi-coke dry quenching device according to claim 1, characterized in that: An upper valve (10) is detachably connected to the discharge port at the bottom end of the intermediate bin (6), and the bottom end of the upper valve (10) is sealedly connected to the top end of the coke discharge bin (22).

4. A semi-coke dry quenching device according to claim 1, characterized in that: The coke discharge bin (22) has a pair of discharge ports, and a guide slope (21) that is narrow at the top and wide at the bottom is provided between the pair of discharge ports, the top of the guide slope (21) being located directly below the discharge port of the intermediate bin (6), and a lower valve (7) is detachably connected to the discharge port of the coke discharge bin (22).

5. The semi-coke dry quenching device according to claim 1, characterized in that: The steam quenching section comprises an air intake pipe (11), a branch pipe (12), a nozzle one (13) and a solenoid valve (14); the air intake pipe (11) is arranged outside the coke bin (1); one side of a plurality of the coke discharge boxes (2) can be detachably connected to the nozzle one (13); the nozzle one (13) is in communication with the coke discharge box (2); the nozzle one (13) and the air intake pipe (11) are in communication with the branch pipe (12); and the solenoid valve (14) is connected in series to the branch pipe (12).

6. A semi-coke dry quenching device according to claim 1, characterized in that: The spray system comprises a pair of spray units, the pair of spray units being detachably connected to both sides of the coke bin (1), the spray units comprising a water inlet pipe (15), an adapter (16) and a second spray head (17), the water inlet pipe (15) being detachably connected to the side of the coke bin (1), the second spray head (17) being detachably connected to the side of the coke bin (1), and one end of the second spray head (17) extending into the coke bin (1), and the other end of the second spray head (17) being connected to the water inlet pipe (15) via the adapter (16).

7. The semi-coke dry quenching device according to claim 1, characterized in that: The lower surface of the coke bin (1) is detachably connected to a conveying sealed cabin (18), the other end of the conveying sealed cabin (18) extends to the top of the intermediate bin (6), the lower surface of the coke bin (1) is in communication with the conveying sealed cabin (18), the top of the intermediate bin (6) is detachably connected to a sealing cover (19), the top of the sealing cover (19) is provided with a discharge port, the discharge port is detachably connected to a discharge bin (20), one side of the discharge bin (20) is in communication with the other end of the conveying sealed cabin (18), the scraper (5) is located in the conveying sealed cabin (18), the other end of the scraper (5) passes through the conveying sealed cabin (18) and extends into the discharge bin (20).

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