Loading device for gasification coarse slag

Abstract

The utility model discloses a kind of loading devices of gasification coarse slag, belong to synthetic ammonia technical field.It include installation platform, distributing pipe, ash water collection tank, sludge dredger, vibrating screen, ash water collection basin, first stair and second stair;The bottom end of distributing pipe is equipped with spare discharge gate and dewatering discharge gate, dewatering discharge gate is connected with vibrating screen, ash water collection basin is located just below vibrating screen and it is connected with ash water collection tank by drain pipe;Installation platform is double-layer structure and it is set along front-back, vibrating screen is set in first layer along front-back, spare discharge gate is located just in front of or just behind vibrating screen, ash water collection tank is located left side or right side of installation platform, sludge dredger and drain pipe are set in left-right direction inclination;First stair is set between first layer and ground, it is located on the side of installation platform close to ash water collection tank, and it is set along left-right direction;Second stair is set between second layer and first layer, and it is set along front-back, and it is located on the side of installation platform away from ash water collection tank.

Description

Technical Field

[0001] This utility model belongs to the field of synthetic ammonia technology, and specifically relates to a loading device for gasified crude residue. Background Technology

[0002] Coal gasification is a thermochemical process. It is a process that uses coal or coke as raw material and oxygen (air, oxygen-enriched or pure oxygen), steam or hydrogen as gasifying agents to convert the combustible parts of coal or coke into gaseous fuels or downstream raw materials through chemical reactions under high temperature conditions.

[0003] Coal gasification ash consists of two parts: coarse ash (gasification furnace slag) and fine ash (black water filter cake). The composition of the coarse ash is similar to that of boiler ash, and it can be utilized together with boiler ash as a blending material for building materials, road and bridge applications, etc. The separation of coarse and fine ash is generally achieved through water washing and filtration, followed by separate collection and further processing or utilization. Typically, a slag remover is used to directly scoop the coarse ash from the ash water collection tank.

[0004] For example, patent application number CN201621284620.3 discloses a vibrating dewatering device for a coal-water slurry gasification unit, including a support frame, a water collection hopper on the support frame, a vibrating dewatering screen above the water collection hopper, a feed inlet at the top of the vibrating dewatering screen, and a feed pipe connected to the feed inlet; the upper end of the water collection hopper is open, and several high-pressure water spray nozzles are provided inside the water collection hopper, and a water outlet pipe is provided on one side of the water collection hopper; the vibrating dewatering screen includes a shell, a screen is provided inside the shell, the screen is connected to a vibrating motor, and a discharge port connected to the screen is provided on the shell; the bottom of the shell is also open, and the bottom of the shell is adapted to the size of the upper end of the water collection hopper; the screen includes a first screen and a second screen, the first screen is a polyurethane screen, and the second screen is a stainless steel screen, and the second screen is located directly below the feed inlet; The feed pipe includes a first feed channel and a second feed channel that are interconnected. The first feed channel is directly connected to the feed inlet. The end of the second feed channel is provided with an openable sealing gate. The feed pipe is provided with a feed valve inside. The first feed channel and the second feed channel are opened or closed through the feed valve.

[0005] For example, patent application number CN201820408271.4 discloses a gasification coarse slag vibration dewatering device, including a slag removal device for gasification coarse slag. The lower end of the discharge port of the slag removal device is connected to a slag conveying pipe that is set at an angle upward. A conveyor belt is installed inside the slag conveying pipe. The lower end of the slag conveying pipe is connected to an ash water collection device. The upper end of the slag conveying pipe is connected to a slag outlet. The slag outlet is connected to an inverted "Y"-shaped material distribution pipe. One of the material distribution ports of the material distribution pipe is connected to a vibrating slag screen device, and the other powder port is connected to a spare slag discharge port. The bottom of the vibrating slag screen device is provided with an ash water collection basin, which is connected to the ash water collection device through a drain pipe.

[0006] like Figure 1 As shown, the existing loading device for gasification coarse slag includes an installation platform, a distribution pipe, an ash water collection tank, a slag remover, a vibrating screen, an ash water collection basin, and a staircase. The ash water collection tank is located directly in front of the installation platform. The slag remover is positioned diagonally upwards from front to back, with its bottom end located inside the ash water collection tank and its top end connected to the feed inlet at the top of the distribution pipe. The bottom end of the distribution pipe has two discharge ports arranged side-by-side, one as a standby discharge port and the other as a dewatering discharge port. The standby discharge port is located directly in front of the vibrating screen, and the dewatering discharge port is connected to the feed inlet at the front of the vibrating screen. The ash water collection basin is located directly below the vibrating screen and is connected to the ash water collection tank via a downward-sloping (from back to front) drain pipe. The vibrating screen is positioned longitudinally, with its rear discharge port located at the rear of the installation platform. The staircase is positioned diagonally upwards from front to back, with its upper end connected to the top front end of the installation platform, and is located below the slag remover. Transport vehicles can enter from both front and back under the installation platform for loading.

[0007] When the applicant used the aforementioned loading device for gasified coarse slag to load the trucks, the following problems were discovered:

[0008] (1) If the transport vehicle moves too far forward, it may collide with the ash water collection tank or steps, causing equipment damage.

[0009] (2) After loading is completed, the transport vehicle needs to reverse, which is troublesome;

[0010] (3) The temperature of the ash water and coarse slag is relatively high, which causes greater wear on the vibrating screen. The vibrating screen and the slag remover need to be maintained frequently. In the existing technology, it is not convenient to maintain, such as the vibrating screen being far from the stairs, requiring bypassing the spare discharge port, and making it impossible to maintain the upper part of the distribution pipe and the slag remover. Utility Model Content

[0011] To address the aforementioned problems, this utility model provides a loading device for gasified coarse slag. The ash water collection tank is located on the left or right side of the installation platform. The transport vehicle moves forward into the bottom layer of the installation platform for loading. After loading, it moves forward away from the installation platform without reversing, eliminating the risk of collision with equipment. The installation platform is designed as a double-layer platform, with corresponding first and second stairs. The first and second stairs employ different configurations for easier equipment maintenance. The technical solution is as follows:

[0012] This utility model provides a loading device for gasification coarse slag, which includes an installation platform, a distribution pipe 4, an ash water collection tank 1, a slag remover 2, a vibrating screen 3, and an ash water collection basin 5. The slag remover 2 is inclined, with its bottom end located in the ash water collection tank 1 and its top end connected to the feed inlet at the top of the distribution pipe 4. The bottom end of the distribution pipe 4 has two discharge ports, namely a spare discharge port 41 and a dewatering discharge port 42. The dewatering discharge port 42 is connected to the feed inlet of the vibrating screen 3. The ash water collection basin 5 is located directly below the vibrating screen 3 and is connected to the ash water collection tank 1 through a downwardly angled drain pipe 6. The device also includes a first staircase 7 and a second staircase 8, and the installation platform has a double-layer structure. Furthermore, it is arranged in a front-to-back direction, allowing the transport vehicle 13 to pass through the bottom layer of the installation platform in a front-to-back direction. The vibrating screen 3 is arranged in a front-to-back direction on the first layer 11 of the installation platform. The spare discharge port 41 is located directly in front of or behind the vibrating screen 3. The ash water collection tank 1 is located on the left or right side of the installation platform. The slag remover 2 and the drain pipe 6 are both inclined in the left and right directions. The first staircase 7 is located between the first layer 11 and the ground, on the side of the installation platform near the ash water collection tank 1, and is arranged in a left-to-right direction. It is located below or in front of the slag remover 2. The second staircase 8 is located between the second layer 12 and the first layer 11 of the installation platform, and is arranged in a front-to-back direction. It is located on the side of the installation platform away from the ash water collection tank 1.

[0013] Furthermore, the loading device for gasified coarse slag provided in this embodiment of the present invention also includes a feed chute 9 and a discharge chute 10. The feed chute 9 is located in the second layer 12. The upper end of the slag remover 2 is connected to the top of the feed chute 9. The feed end of the distribution pipe 4 passes upward through the second layer 12 and is connected to the bottom of the feed chute 9. The discharge chute 10 is vertically located in the first layer 11. It passes downward through the first layer 11 and is located directly below the discharge port of the vibrating screen 3.

[0014] In this embodiment of the present invention, the spare discharge port 41 extends downward relative to the dewatering discharge port 42 and passes downward through the first layer 11; both the spare discharge port 41 and the discharge chute 10 are provided with plate valves 16 and are located above the transport vehicle 13, and the plate valves 16 are located above the first layer 11.

[0015] Specifically, in this embodiment of the present invention, the vibrating screen 3 is a 1548S type single-layer linear screen with an operating frequency of 950-1000 RPM, an amplitude of 4-8 mm, and an installation angle of -2° to -5°.

[0016] Furthermore, in this embodiment of the present invention, the vibrating screen 3 is provided with a vibrator 20 on its top and a support 14 on its left or right side; the support 14 is located on the first layer 11, on the side of the vibrating screen 3 near the ash water collection tank 1, and a motor 15 is provided on it; the motor 15 is connected to the vibrator 20 through a left-right coupling and is located below the slag remover 2.

[0017] Specifically, in this embodiment of the present invention, the spare discharge port 41 is located directly behind the vibrating screen 3, the ash water collection tank 1 is located on the right side of the installation platform, the slag remover 2 and the first staircase 7 are both arranged diagonally upward from right to left, the support 14 is located in the middle of the first layer 11 and is located on the right side of the vibrating screen 3; the first staircase 7 is located on the right side of the installation platform, on the left side of the ash water collection tank 1, and below and in front of the support 14; the second staircase 8 is located on the left side of the installation platform and is arranged diagonally upward from front to back, and the slag remover 2 is located above and behind the support 14.

[0018] In this embodiment of the utility model, the installation platform includes a first layer 11, a second layer 12, two supporting walls between the first layer 11 and the ground, and multiple supporting columns between the first layer 11 and the second layer 12. The supporting walls and supporting columns are all vertically arranged. The two supporting walls are respectively located at the left and right ends of the lower side of the first layer 11 and are respectively located on the left and right sides of the transport vehicle 13. Supporting columns are correspondingly arranged around the first layer 11 and the second layer 12. The upper sides of the first layer 11 and the second layer 12 are all equipped with fences.

[0019] Furthermore, in this embodiment of the utility model, the upper end of the slag removal machine 2 passes through the second layer 12, and a third staircase 17 is provided on its upper side. A first column 18 is provided between its upper lower side and the first layer 11, and a second column 19 is provided between its middle lower side and the ground. The third staircase 17 is located between the ash water collection tank 1 and the second layer 12, and both the first column 18 and the second column 19 are vertically arranged.

[0020] Specifically, in this embodiment of the present invention, the height of the first layer 11 is 4.3m and the height of the second layer 12 is 7.3m.

[0021] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a loading device for gasified coarse slag. The ash water collection tank is located on the left or right side of the installation platform. The transport vehicle moves forward into the bottom layer of the installation platform for loading. After loading, it moves forward away from the installation platform without reversing, and there is no risk of colliding with the equipment. The installation platform is designed as a double-layer platform, with a first staircase and a second staircase respectively. The first staircase and the second staircase adopt different settings. Specifically, the first staircase is inclined to the left and right (avoiding the support) and is located close to the ash water collection tank, while the second staircase is inclined to the front and back and is located away from the ash water collection tank. The first staircase is close to the vibrating screen (for easy maintenance of the vibrating screen and control of the two plate valves), while the second staircase, although farther away, is rarely used (due to less maintenance of the slag remover). This device has a compact structure and is easier to maintain. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the existing loading device for gasified coarse slag;

[0023] Figure 2 This is a schematic diagram of the loading device for gasified coarse slag provided in this embodiment of the utility model;

[0024] Figure 3 This is a side view of the loading device for gasified coarse slag provided in this embodiment of the utility model.

[0025] In the diagram: 1. Ash water collection tank, 2. Slag remover, 3. Vibrating screen, 4. Distribution pipe, 5. Ash water collection basin, 6. Drainage pipe, 7. First staircase, 8. Second staircase, 9. Feed chute, 10. Discharge chute, 11. First floor, 12. Second floor, 13. Transport vehicle, 14. Support frame, 15. Motor, 16. Plate valve, 17. Third staircase, 18. First column, 19. Second column, 20. Vibrator;

[0026] 41 Spare discharge port, 42 Dewatering discharge port. Detailed Implementation

[0027] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] See Figure 2-3 Example 1 provides a loading device for gasified coarse slag, which includes an installation platform, a distribution pipe 4, an ash water collection tank 1, a slag remover 2, a vibrating screen 3, an ash water collection basin 5, a first staircase 7, a second staircase 8, a feed chute 9, a discharge chute 10, and a support 14.

[0030] The installation platform has a double-layer structure (including a first layer 11 and a second layer 12) and is arranged in a front-to-back direction, allowing the transport vehicle 13 to pass through the bottom layer of the installation platform in both directions. The ash water collection tank 1 is located on the left or right side of the installation platform. The feed chute 9 is located on the second layer 12.

[0031] The slag remover 2 is tilted to the left or right, located on the left or right side of the installation platform. Its bottom end is located in the ash water collection tank 1, and its top end is connected to the top of the feed tank 9 (specifically, directly above).

[0032] The feed pipe 4 is vertically arranged and has a Y-shaped structure. It is equipped with a three-way valve 21 (for selecting between the standby discharge port 41 and the dewatering discharge port 42). Its feed end (upper end) passes upward through the second layer 12 and connects to the bottom of the feed trough 9. Its bottom end has two discharge ports: the standby discharge port 41 and the dewatering discharge port 42. The dewatering discharge port 42 is connected to the feed port of the vibrating screen 3 (directly above or via a flexible connection). The standby discharge port 41 is located directly in front of or behind the vibrating screen 3. The standby discharge port 41 (vertically arranged) extends downward relative to the dewatering discharge port 42 and passes downward through the first layer 11.

[0033] The vibrating screen 3 is located on the first layer 11 of the mounting platform along the front-to-back direction. It is a single-layer linear screen, and a vibrator 20 (specifically model JA20, used to drive the vibrating screen 3 to vibrate) is installed on its top. The discharge chute 10 is vertically installed on the first layer 11, passing downward through the first layer 11. It is located directly below the discharge port (located at the front or rear end) of the vibrating screen 3 to receive the material output from the vibrating screen 3. Both the spare discharge port 41 and the discharge chute 10 are equipped with plate valves 16, which are located above the transport vehicle 13. The plate valves 16 are located above the first layer 11 for easy operation. The plate valves 16 on the spare discharge port 41 are normally closed, and the plate valves 16 on the discharge chute 10 are opened when loading. The bracket 14 is located on the first layer 11, on the left or right side of the vibrating screen 3, on the side of the vibrating screen 3 closest to the ash water collection tank 1. A motor 15 is installed on it. The motor 15 is connected to the vibrator 20 via a left-right coupling and is located below the slag remover 2.

[0034] The ash water collection basin 5 is located directly below the vibrating screen 3. It is located on the first layer 11 and is connected to the ash water collection tank 1 through a downward (slanted in the left and right direction) drain pipe 6. It is used to receive the filtrate discharged from the vibrating screen 3 and is arranged in the front and back direction.

[0035] The first staircase 7 is located between the first floor 11 and the ground, on the side of the installation platform near the ash water collection tank 1, and is arranged in a left-right direction. It is located below or behind the slag remover 2, and is positioned away from the support 14. The second staircase 8 is located between the second floor 12 and the first floor 11 of the installation platform, and is arranged in a front-back direction. It is located on the side of the installation platform away from the ash water collection tank 1.

[0036] Among them, see Figure 2-3 The installation platform in this embodiment includes a first layer 11, a second layer 12, two supporting walls between the first layer 11 and the ground, and multiple supporting columns between the first layer 11 and the second layer 12. The second layer 12 and the first layer 11 are arranged side by side vertically and horizontally. The height of the first layer 11 is greater than the height of the transport vehicle 13. The supporting walls and supporting columns are both vertically arranged, with the supporting walls arranged along the front-to-back direction. The two supporting walls are respectively located at the left and right ends of the lower side of the first layer 11, which are located on the left and right sides of the transport vehicle 13, and the distance between them is greater than the width of the transport vehicle 13. Supporting columns are correspondingly arranged around the first layer 11 and the second layer 12. The upper sides of the first layer 11 and the second layer 12 are equipped with railings, and the first staircase 7 and the second staircase 8 are equipped with railings on both sides. Specifically, the first layer 11 and the second layer 12 are both rectangular plates, and at least two supporting columns are arranged between each side.

[0037] Example 2

[0038] See Figure 3 Example 2 provides a loading device for gasified coarse slag, whose structure is basically the same as that of Example 1, except that: the upper end of the slag remover 2 in this example passes through the left or right end of the second layer 12 (with corresponding notches), and a third staircase 17 (sloping with railings on both sides) is provided on its upper side. A first column 18 is provided between the lower part of the upper staircase and the corresponding end of the first layer 11, and a second column 19 is provided between the lower part of the middle staircase and the ground. The third staircase 17 is located between the ash water collection tank 1 and the second layer 12. The first column 18 and the second column 19 are both vertically set to ensure the stability of the slag remover 2 and to ensure that there is no risk for the operator to walk on the third staircase 17.

[0039] Example 3

[0040] Example 3 provides a loading device for gasified coarse slag, whose structure is basically the same as that of Example 1, except that: the vibrating screen 3 in this example is a 1548S type single-layer linear screen with an operating frequency of 950-1000 RPM, an amplitude of 4-8 mm, an installation angle of -2° to -5°, and uses rubber springs / steel helical springs. Its effective screen area is 1.5 m²(W) * 4.8 m²(W), the screen plate material is stainless steel (polyurethane edging), and its power is 15 KW. The feed rate of the vibrating screen 3 is 25 TPH, the material is coarse slag, the material temperature is about 70°C, the material particle size is 0-20 mm, and the material moisture content is about 60%. The moisture content of the dewatered material is about 30%.

[0041] Example 4

[0042] Example 4 provides a loading device for gasified coarse slag, the structure of which is basically the same as that of Example 1, except that: the height of the first layer 11 in this example is 4.3m and its length is 8m. The height of the second layer 12 is 7.3m.

[0043] Example 5

[0044] See Figure 2-3 Example 5 provides a loading device for gasified coarse slag, whose structure is basically the same as that of Example 1, except that: in this example, the spare discharge port 41 (located at the rear of the first layer 11) is located directly behind the vibrating screen 3, the discharge chute 10 (located at the front of the first layer 11) is located directly below the discharge port at the front end of the vibrating screen 3, the ash water collection tank 1 is located on the right side of the installation platform, the slag remover 2 and the first staircase 7 are both arranged diagonally upward from right to left, the support 14 is located in the middle of the first layer 11 and is located on the right side of the vibrating screen 3. The first staircase 7 is located on the right side of the installation platform, on the left side of the ash water collection tank 1, and below and in front of the support 14. The second staircase 8 is located on the left side of the installation platform and is arranged diagonally upward from front to back, and the slag remover 2 is located above and behind the support 14.

[0045] In this patent, the terms "first," "second," and "third" serve only to distinguish the parts and have no other special meaning.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A loading device for gasification coarse slag, comprising an installation platform, a distribution pipe (4), an ash water collection tank (1), a slag remover (2), a vibrating screen (3), and an ash water collection basin (5); the slag remover (2) is inclined, its bottom end is located in the ash water collection tank (1), and its top end is connected to the feed inlet at the top of the distribution pipe (4); the bottom end of the distribution pipe (4) is provided with two discharge ports, namely a spare discharge port (41) and a dewatering discharge port (42), the dewatering discharge port (42) is connected to the feed inlet of the vibrating screen (3), and the ash water collection basin (5) is located directly below the vibrating screen (3) and is connected to the ash water collection tank (1) through a downwardly angled drain pipe (6); characterized in that, The device also includes a first staircase (7) and a second staircase (8). The installation platform is a double-layer structure and is arranged in the front-to-back direction. The transport vehicle (13) can pass through the bottom layer of the installation platform in the front-to-back direction. The vibrating screen (3) is arranged in the front-to-back direction on the first layer (11) of the installation platform. The spare discharge port (41) is located in front of or behind the vibrating screen (3). The ash water collection tank (1) is located on the left or right side of the installation platform. The slag remover (2) and the drain pipe (6) are both inclined in the left and right directions. The first staircase (7) is located between the first layer (11) and the ground. It is located on the side of the installation platform close to the ash water collection tank (1). It is arranged in the left and right direction. It is located below the front or below the rear of the slag remover (2). The second staircase (8) is located between the second layer (12) and the first layer (11) of the installation platform. It is arranged in the front-to-back direction. It is located on the side of the installation platform away from the ash water collection tank (1).

2. The loading device for gasified coarse slag according to claim 1, characterized in that, The device also includes a feed chute (9) and a discharge chute (10). The feed chute (9) is located on the second layer (12). The upper end of the slag remover (2) is connected to the top of the feed chute (9). The feed end of the distribution pipe (4) passes upward through the second layer (12) and is connected to the bottom of the feed chute (9). The discharge chute (10) is vertically located on the first layer (11). It passes downward through the first layer (11) and is located directly below the discharge port of the vibrating screen (3).

3. The loading device for gasified coarse slag according to claim 2, characterized in that, The spare discharge port (41) extends downward relative to the dewatering discharge port (42) and passes downward through the first layer (11); both the spare discharge port (41) and the discharge chute (10) are equipped with plate valves (16) and are located above the transport vehicle (13), with the plate valves (16) located above the first layer (11).

4. The loading device for gasified coarse slag according to claim 1, characterized in that, The vibrating screen (3) is a 1548S type single-layer linear screen with an operating frequency of 950-1000RPM, an amplitude of 4-8mm, and an installation angle of -2° to -5°.

5. The loading device for gasified coarse slag according to claim 1, characterized in that, The vibrating screen (3) is provided with a vibrator (20) on its top and a support (14) on its left or right side; the support (14) is located on the first layer (11) and is located on the side of the vibrating screen (3) near the ash water collection tank (1), and is provided with a motor (15); the motor (15) is connected to the vibrator (20) through a left-right coupling and is located below the slag remover (2).

6. The loading device for gasified coarse slag according to claim 5, characterized in that, The spare discharge port (41) is located directly behind the vibrating screen (3), the ash water collection tank (1) is located on the right side of the installation platform, the slag remover (2) and the first staircase (7) are both set diagonally upward from right to left, the bracket (14) is located in the middle of the first layer (11) and is located on the right side of the vibrating screen (3); the first staircase (7) is located on the right side of the installation platform, on the left side of the ash water collection tank (1), and below the front of the bracket (14); the second staircase (8) is located on the left side of the installation platform and is set diagonally upward from front to back, and the slag remover (2) is located above the rear of the bracket (14).

7. The loading device for gasified coarse slag according to claim 1, characterized in that, The installation platform includes a first layer (11), a second layer (12), two supporting walls between the first layer (11) and the ground, and multiple supporting columns between the first layer (11) and the second layer (12). The supporting walls and supporting columns are all vertically arranged. The two supporting walls are respectively located at the left and right ends of the lower side of the first layer (11) and are respectively located on the left and right sides of the transport vehicle (13). Supporting columns are correspondingly arranged around the first layer (11) and the second layer (12). The upper sides of the first layer (11) and the second layer (12) are all equipped with fences.

8. The loading device for gasified coarse slag according to claim 1, characterized in that, The upper end of the slag removal machine (2) passes through the second floor (12) and a third staircase (17) is provided on its upper side. A first column (18) is provided between the lower part of its upper part and the first floor (11), and a second column (19) is provided between the lower part of its middle part and the ground. The third staircase (17) is located between the ash water collection tank (1) and the second floor (12). The first column (18) and the second column (19) are both vertically arranged.

9. The loading device for gasified coarse slag according to claim 1, characterized in that, The height of the first layer (11) is 4.3m, and the height of the second layer (12) is 7.3m.

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