Platform for replacing coaling roller of two-section type gas producer

Abstract

A two-section type coal feeding roller replacing platform of a gas producer comprises an operation platform, a concave notch is formed in one side of the operation platform, the two-section type coal feeding roller replacing platform further comprises a platform climbing stair, a hoisting assembly and two same positioning columns, the platform climbing stair is welded to the side, opposite to the concave notch, of the operation platform, and the two same positioning columns are installed at the bottom of one side of the concave notch of the operation platform respectively. The hoisting assembly is installed on the surface of the operation platform and comprises a hydraulic lifting column, a cross arm is welded to the top of the hydraulic lifting column, a fixed pulley installation frame is welded to the bottom of one end of the cross arm, a rotating base is arranged at the bottom of the hydraulic lifting column, and an auxiliary rotating rod is installed in the middle of the surface of the hydraulic lifting column. According to the invention, the condition of inclined pulling and inclined hoisting in the operation process of replacing the coaling roller can be avoided, the potential safety hazard in the field operation process is reduced, and the safety coefficient of operation is improved; and meanwhile, the operation is completed under the condition that fewer operators participate, so that the labor cost and the time cost are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of two-stage gasifiers, in particular to a coal-feeding roller platform for replacing the two-stage gasifier. Background Art

[0002] A two-stage gasifier is a device for producing syngas, usually used in industrial production and energy production. It consists of two main parts: the upper part is called the retort or gasifier, and the lower part is called the coking furnace or reduction furnace. This type of furnace can use a variety of fuels, including coal, biomass and waste, to convert them into syngas, and can be operated under different process conditions to adapt to different types of fuels and production needs. The two-stage gasifier usually includes a device for adding coal, usually called a coal feeder or feeder. This device is located at the top of the retort and is used to continuously feed solid fuel into the furnace to keep the gasification reaction going continuously. The coal is usually loaded into the coal feeder from a storage bin or hopper and then transported to the furnace by rotation. The operation of the coal feeder can be achieved by controlling the rotation speed or adjusting the feed amount. Such a design can ensure a continuous and stable supply of coal in the furnace, thereby ensuring the continuous progress of the gasification reaction and improving the production efficiency and stability of the gasifier.

[0003] The existing two-stage coal gasifier's coal-feeding roller will need to be replaced because during long-term operation, the roller surface may be affected by wear and aging due to the continuous coal transportation and high temperature environment; and during the operation of the gasifier, the coal-feeding roller may be affected by coal blockage or ash accumulation. This will lead to obstruction of coal transportation, affect the continuous gasification reaction, and thus affect the production efficiency and stability of the furnace; at the same time, regular replacement of the coal-feeding roller is also part of the maintenance and care of the gasifier; in addition, with the continuous advancement of technology, in order to improve the production efficiency and energy utilization of the gasifier, it may be necessary to replace the old roller with a new roller.

[0004] However, when replacing the coal-loading drum, operators are required to set up scaffolding on site before they can carry out the operation. Due to the working conditions of the on-site equipment, the temporary scaffolding has a large slope and poor stability. It is difficult to achieve balance on both sides when using a short-circuited heightened scaffolding. When people go up and down the scaffolding, the scaffolding is unstable due to inconsistent heights. The working surface of the people standing on the top of the scaffolding is small, and it is very easy to step on air. The safety belt cannot be hung high and used low, which poses certain safety hazards. In addition, it usually takes three people four days to complete the work of replacing the coal-loading drum, which consumes a lot of human resources, is inefficient, and can hardly meet the increasingly accelerated production needs. Utility Model Content

[0005] In view of the above problems, a two-stage gasifier coal adding roller replacement platform is provided. By setting an operating platform of a specific shape and using structures such as lifting components, positioning columns, wedge brakes and rubber bases, the safety hazards and low efficiency in the operation process are solved.

[0006] To solve the problems of the prior art, the utility model provides a two-stage coal gasifier coal-feeding drum replacement platform, comprising an operating platform, a concave notch being provided on one side of the operating platform, a staircase for ascending and descending the operating platform in a rapid manner, a hoisting assembly and a positioning column; the staircase for ascending and descending the operating platform is welded to a side opposite to the concave notch of the operating platform, and is used for quickly ascending and descending the operating platform; two identical positioning columns are respectively mounted on the bottom of one side of the concave notch of the operating platform, and are used for fixing the working position of the operating platform; the hoisting assembly is mounted on the surface of the operating platform, comprising a hydraulic lifting column, which is used for fine-tuning the installation height during hoisting; a cross arm is welded on the top of the hydraulic lifting column, and a fixed pulley mounting frame is welded on the bottom of one end of the cross arm, which is used for hoisting the coal-feeding drum through the fixed pulley; a rotating base is provided on the bottom of the hydraulic lifting column, which is used for assisting the hydraulic lifting column to rotate on the operating platform; an auxiliary rotating rod is installed on the middle of the surface of the hydraulic lifting column, which is used for assisting the hydraulic lifting column to rotate.

[0007] Preferably, the positioning column includes a sleeve, and a fixed connection is formed between the top of the sleeve and the bottom of the operating platform; an internal thread swivel is rotatably connected to the bottom of the sleeve, and a threaded lifting column is sleeved on the inner wall of the internal thread swivel, and the internal thread swivel forms a threaded connection with the threaded lifting column through the thread on its inner wall; the threaded lifting column forms a telescopic structure through the internal thread swivel and the sleeve.

[0008] Preferably, mounting seats are welded on both sides of the bottom of the staircase, and auxiliary pulleys are installed at the bottom of the mounting seats, which are used to assist the operating platform to move to the working area; a spring shaft frame is installed at the top of the mounting seat, and a wedge brake is installed at the bottom of the spring shaft frame, which forms a rotating structure between the mounting shaft frame and the mounting seat.

[0009] Preferably, guardrails are installed around the operating platform respectively, and the guardrails on both sides of the operating platform form a flip structure with the operating platform through a rotating shaft.

[0010] Preferably, two main support columns are welded in the middle of the bottom surface of the operating platform, and the main support columns are symmetrically distributed with respect to the horizontal axis of the operating platform; and main pulleys are movably installed at the bottom of the main support columns.

[0011] Preferably, a rubber base is installed at the bottom of the threaded lifting column, and the bottom of the rubber base is provided with an anti-slip herringbone pattern.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model sets an operating platform with a concave notch on the surface, adds a lifting assembly, and utilizes the hydraulic lifting column, cross arm, fixed pulley mounting frame, rotating base and auxiliary rotating rod in the lifting assembly, so that the device can easily lift the coal adding drum to be installed, and through lifting, rotating and other methods, it can quickly reach the accurate installation position, saving labor costs and improving installation efficiency.

[0014] 2. The utility model increases the positioning column and utilizes the structures such as the sleeve, the internal thread swivel and the threaded lifting column on the positioning column, so that when the device enters the installation operation area, the height of the threaded lifting column can be adjusted through the internal thread swivel, thereby achieving the effect of keeping the operating platform balanced. At the same time, the working position of the operating platform can also be positioned by the position of the threaded lifting column, making it easier for the lifting assembly to lift the coal loading drum.

[0015] 3. The utility model adds an auxiliary pulley, a main pulley, a spring shaft frame, a wedge-shaped brake and a rubber base, so that the operator can push the operating platform to the working area where the coal-loading drum needs to be installed. At the same time, before starting to hoist the coal-loading drum, the wedge-shaped brake and the rubber base can provide limiting effects for the auxiliary pulley and the front of the operating platform respectively, so that the operating platform is stable and does not shake, helping the operator to complete the work of replacing the coal-loading drum more safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the replacement of the coal-adding roller platform of the two-stage gasifier;

[0017] Figure 2 It is a front view of the platform for replacing the coal-adding roller of a two-stage gasifier;

[0018] Figure 3 This is the right side view of the two-stage gasifier replacing the coal-adding roller platform;

[0019] Figure 4 It is a three-dimensional diagram of the staircase for replacing the coal drum platform of a two-stage gasifier;

[0020] Figure 5 It is a three-dimensional diagram of the lifting assembly for replacing the coal-feeding drum platform of a two-stage gasifier;

[0021] Figure 6 It is a stereoscopic view of the positioning column for replacing the coal-feeding drum platform of a two-stage gasifier;

[0022] The numbers in the figure are: 1. Operating platform; 11. Guardrail; 12. Main support column; 13. Main pulley; 2. Stairs for access to the platform; 21. Mounting seat; 22. Auxiliary pulley; 23. Spring shaft frame; 24. Wedge brake; 3. Lifting assembly; 31. Hydraulic lifting column; 32. Cross arm; 33. Fixed pulley mounting frame; 34. Rotating base; 35. Auxiliary rotating rod; 4. Positioning column; 41. Casing; 42. Internal thread swivel; 43. Threaded lifting column; 44. Rubber base. DETAILED DESCRIPTION

[0023] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a two-stage gasifier replacement coal-feeding drum platform includes an operating platform 1, one side of which is provided with a concave notch, and also includes a staircase 2, a hoisting assembly 3 and a positioning column 4; the staircase 2 is welded to the side opposite to the concave notch of the operating platform 1, and is used for quickly moving up and down the operating platform 1; the positioning columns 4 are provided as two identical ones, which are respectively installed at the bottom of one side of the concave notch of the operating platform 1, and are used for fixing the working position of the operating platform 1; the hoisting assembly 3 is installed on the surface of the operating platform 1, and includes a hydraulic lifting column 31, which is used for fine-tuning the installation height during lifting; a cross arm 32 is welded to the top of the hydraulic lifting column 31, and a fixed pulley mounting frame 33 is welded to the bottom of one end of the cross arm 32, which is used for hoisting the coal-feeding drum through the fixed pulley; a rotating base 34 is provided at the bottom of the hydraulic lifting column 31, which is used to assist the hydraulic lifting column 31 to rotate on the operating platform 1; an auxiliary rotating rod 35 is installed in the middle of the surface of the hydraulic lifting column 31, which is used to assist the hydraulic lifting column 31 to rotate.

[0025] The concave notch on the operating platform 1 is mainly used to match the appearance of the two-stage gasifier, so that the operating platform 1 can be close to the two-stage gasifier when installing the coal-adding drum, so as to reduce the difficulty of installation and improve the safety factor during the installation process; the access staircase 2 is convenient for operators to quickly go up and down the operating platform 1, and the inclined structure of the access staircase 2 can further improve the stability of the operating platform 1; when the two-stage gasifier needs to replace the coal-adding drum, the operating platform 1 is first pushed to a suitable position so that the concave notch on its surface is stuck to the external structure of the two-stage gasifier, and then the coal-adding drum is firmly clamped by hanging and clamping tools, such as steel cables or chain cables with clamps, and then it is removed from the two-stage gasifier, and then the fixed pulley on the fixed pulley mounting frame 33 is used to drag the coal-adding drum to move , and rotate the hydraulic lifting column 31 and the cross arm 32 through the auxiliary rotating rod 35, so that the fixed pulley mounting frame 33 on which the coal charging drum is suspended rotates to the outside of the operating platform 1 area, and then slowly lowers the steel cable to remove the coal charging drum to be replaced; after the old coal charging drum is removed, the new coal charging drum is clamped on the clamping structure at one end of the steel cable, and the new coal charging drum is lifted by pulling the steel cable, and the hydraulic lifting column 31 is rotated as a whole again through the auxiliary rotating rod 35, so that the coal charging drum approaches the installation position, the hydraulic lifting column 31 is turned on, and the lifting height of the coal charging drum is adjusted. At the same time, the cross arm 32 is further rotated through the auxiliary active rod to further locate the installation position of the coal charging drum, so that the position of the coal charging drum before installation is more accurate, the installation difficulty is reduced, and the cost of manual assistance during installation is reduced, thereby improving the efficiency of replacing the coal charging drum.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the positioning column 4 includes a sleeve 41, and the top of the sleeve 41 is fixedly connected to the bottom of the operating platform 1; the bottom of the sleeve 41 is rotatably connected to an internal thread swivel 42, and the inner wall of the internal thread swivel 42 is sleeved with a threaded lifting column 43, and the internal thread swivel 42 is threadedly connected to the threaded lifting column 43 through the thread on its inner wall; the threaded lifting column 43 forms a telescopic structure through the internal thread swivel 42 and the sleeve 41.

[0027] The sleeve 41 is welded and fixed to the operating platform 1, and a rotational connection is formed between the bottom of the sleeve 41 and the top of the inner thread swivel 42. The inner wall of the inner thread swivel 42 is provided with an inner thread thread. The inner diameter of the inner thread swivel 42 is slightly smaller than the inner diameter of the sleeve 41, and the inner thread thread of the inner thread swivel 42 is adapted to the thread on the surface of the threaded lifting column 43. When the operating platform 1 stops moving, an operator is required to go on stage to work. Before that, the levelness and stability of the operating platform 1 need to be guaranteed. The inner thread swivel 42 is rotated, and the length of the threaded lifting column 43 exposed outside the sleeve 41 is adjusted so that it can balance the uneven area of ​​the ground in the operating area, and finally the operating platform 1 is horizontally and stably state, thereby improving the safety factor during operation.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, mounting seats 21 are welded on both sides of the bottom of the staircase 2, and auxiliary pulleys 22 are installed at the lower part of the mounting seats 21. The auxiliary pulleys 22 are used to assist the operating platform 1 to move to the working area; a spring shaft frame 23 is installed on the upper part of the mounting seat 21, and a wedge brake 24 is installed at the bottom of the spring shaft frame 23. The wedge brake 24 forms a rotating structure through the mounting shaft frame and the mounting seat 21.

[0029] When the operating platform 1 is moved, the auxiliary pulley 22 at the bottom of the staircase 2 provides an auxiliary sliding structure, so that the operating platform 1 can move more smoothly; when the operating platform 1 stops moving, the wedge brake 24 is rotated to the bottom of the auxiliary pulley 22 to limit the auxiliary pulley 22, thereby achieving the effect of positioning the operating platform 1.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, guardrails 11 are installed around the operating platform 1 respectively, and the guardrails 11 on both sides of the operating platform 1 form a flip structure with the operating platform 1 through a rotating shaft.

[0031] When the operator climbs onto the operating platform 1, the guardrail 11 is vertically erected on the surface of the operating platform 1, providing a protective structure for the operator. When the coal-loading drum needs to be hoisted or unloaded, the guardrail 11 can be flipped to fit under one side of the operating platform 1, providing an unobstructed passage for the hoisting component 3 to lift the coal-loading drum.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, two main support columns 12 are welded to the middle of the bottom surface of the operating platform 1 , and the main support columns 12 are symmetrically distributed with respect to the horizontal axis of the operating platform 1 ; a main pulley 13 is movably installed at the bottom of the main support column 12 .

[0033] The main support column 12 provides a main support structure for the operating platform 1, and the main pulley 13 at the bottom of the main support column 12 can also help the operating platform 1 to move to a designated working area.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a rubber base 44 is installed at the bottom of the threaded lifting column 43, and the bottom of the rubber base 44 is provided with an anti-slip herringbone pattern.

[0035] The rubber base 44 at the bottom of the threaded lifting column 43 can improve the hard contact between the threaded lifting column 43 and the ground or equipment. At the same time, the rubber base 44 can play an anti-slip role, so that the threaded lifting column 43 will not slide and displace, further improving the stability of the operating platform 1.

[0036] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A two-stage gasifier replacement coal-feeding drum platform comprises an operating platform (1), one side of the operating platform (1) is provided with a concave notch, characterized in that: It also includes a staircase (2), a hoisting assembly (3) and a positioning column (4); The staircase (2) is welded to the side of the operating platform (1) opposite to the concave notch, and is used for quickly ascending and descending the operating platform (1); The positioning columns (4) are provided in two identical pieces and are respectively installed at the bottom of one side of the concave notch of the operating platform (1) and are used to fix the working position of the operating platform (1); The hoisting assembly (3) is installed on the surface of the operating platform (1), and includes a hydraulic lifting column (31) for fine-tuning the installation height during hoisting; A cross arm (32) is welded to the top of the hydraulic lifting column (31), and a fixed pulley mounting frame (33) is welded to the bottom of one end of the cross arm (32) for hoisting the coal feeding drum through the fixed pulley; A rotating base (34) is provided at the bottom of the hydraulic lifting column (31) for assisting the hydraulic lifting column (31) in rotating on the operating platform (1); An auxiliary rotating rod (35) is installed in the middle of the surface of the hydraulic lifting column (31) to assist the hydraulic lifting column (31) in rotating.

2. The two-stage gasifier furnace replacement coal-feeding drum platform according to claim 1 is characterized in that: The positioning column (4) includes a sleeve (41), and the top of the sleeve (41) is fixedly connected to the bottom of the operating platform (1); The bottom of the sleeve (41) is rotatably connected with an inner thread swivel (42), the inner wall of the inner thread swivel (42) is sleeved with a threaded lifting column (43), and the inner thread swivel (42) is threadedly connected with the threaded lifting column (43) through the threads on the inner wall thereof; The threaded lifting column (43) forms a telescopic structure between the inner thread rotating ring (42) and the sleeve (41).

3. The two-stage gasifier replacement coal-feeding drum platform according to claim 1 is characterized in that: Mounting seats (21) are welded to both sides of the bottom of the staircase (2), and auxiliary pulleys (22) are installed at the bottom of the mounting seats (21). The auxiliary pulleys (22) are used to assist the operating platform (1) to move to the working area. A spring shaft frame (23) is installed on the upper part of the mounting seat (21), and a wedge brake (24) is installed on the bottom of the spring shaft frame (23). The wedge brake (24) forms a rotating structure through the mounting shaft frame and the mounting seat (21).

4. The two-stage gasifier furnace replacement coal-feeding drum platform according to claim 1 is characterized in that: Guardrails (11) are respectively installed around the operating platform (1), and the guardrails (11) on both sides of the operating platform (1) form a flip structure with the operating platform (1) via a rotating shaft.

5. The two-stage gasifier furnace replacement coal-feeding drum platform according to claim 1 is characterized in that: Two main support columns (12) are welded in the middle of the bottom surface of the operating platform (1), and the main support columns (12) are symmetrically distributed with respect to the horizontal axis of the operating platform (1); A main pulley (13) is movably mounted on the bottom of the main support column (12).

6. The two-stage gasifier replacement coal-feeding drum platform according to claim 2 is characterized in that: A rubber base (44) is installed at the bottom of the threaded lifting column (43), and an anti-skid herringbone pattern is arranged at the bottom of the rubber base (44).

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