Bin anti-blocking fan-shaped valve cleaning system and cleaning method

Abstract

The invention relates to the technical field of steelmaking converter slag treatment equipment, in particular to an anti-blocking sector valve cleaning system and method for a stock bin. Through cooperation of the stock bin electro-hydraulic fan-shaped valve system and the anti-blocking scraper cleaning device, the problems that materials in the stock bin are hardened and discharging is not smooth can be well solved, the failure rate of the stock bin fan-shaped valve is greatly reduced, and powerful guarantee is provided for normal operation of discharging. Meanwhile, the operation intensity of slag removal personnel is greatly reduced, and the manpower, material and financial costs are saved; for field management, water leakage and slag leakage generate great potential safety hazards and are not beneficial to field management, and after water leakage and slag leakage are solved, the potential safety hazards can be better eliminated, and field management work is completed; meanwhile, in the aspect of environmental protection, the method is more beneficial to product recycling and better conforms to the idea of environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of steelmaking converter slag processing equipment, and in particular to a silo anti-blocking fan-shaped valve cleaning system and a cleaning method. Background Art

[0002] In the process of treating steel slag with the drum, as one of the main treatment equipment in the drum process, the drum uses the different shrinkage rates of slag and steel to separate the steel slag in the drum; and uses the medium to cool and crush at one time, and adopts different segmentation spaces to achieve safe and sufficient granulation with good stability; and then the slag is crushed, rapidly cooled, and solidified to complete the treatment of the steel slag. At the same time, when this technology is treating steel slag, the entire process can achieve the concept of "no slag on the ground", and its cleanliness level is high and it is relatively environmentally friendly.

[0003] Silos are key equipment for storing and regulating material flow. As a flow control device at the bottom of the silo, fan valves are widely used in various industrial occasions. However, in actual use, there are two problems that affect the stability of use. The first is that the valve leaks water and slag. The intensification of water and slag leakage affects environmental protection requirements and becomes an on-site accident; the second is that the material is severely compacted. The main reason for the compaction of steel slag is that steel slag has good water permeability and drainage. The gelling components in it can make it compact into large pieces, which affects the flow and transportation of materials and affects production efficiency. If there is leakage and accumulation of slag, the slag must be cleaned. The frequent cleaning of slag leads to a great consumption of manpower, material and financial resources, increases labor intensity, affects the normal discharge of materials, and even causes the fan valve to be blocked and damaged, seriously affecting production efficiency and equipment life. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a silo anti-blocking fan-shaped valve cleaning system and cleaning method are provided, which can effectively solve the problems of water leakage and slag leakage of the fan-shaped valve and material accumulation, and realize long-term and rapid automatic cleaning of accumulated slag to prevent material compaction.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] 1. A fan-shaped valve cleaning system for preventing material blockage in silos

[0007] The present invention provides an acid regeneration fluidized bed process seed manufacturing device, which mainly includes: a material bin electro-hydraulic fan-shaped valve system and an anti-blocking scraper cleaning device; the material bin electro-hydraulic fan-shaped valve structure includes a shell 1, a fan-shaped plate 2, a rotating shaft 3, an arc plate 4, a flange 5, a fork head connecting seat 6, an oil cylinder bracket 7, an oil cylinder 8, a shaft sleeve 9, a sealing gland 10 and a supporting channel steel 11, and the anti-blocking scraper cleaning device includes a scraper frame 12, a scraper 13 and a telescopic mechanism 14;

[0008] The housing 1 is symmetrically provided with rotating shafts 3, and the ends of the two rotating shafts 3 are rotatably connected with sector plates 2, and the bottoms of the two sector plates 2 are connected by arc plates 4, and the shape of the arc plates 4 is adapted to the arc surface shape of the bottom of the housing 1; the outer sides of the sector plates 2 are connected to the corresponding oil cylinders 8 through fork connecting seats 6, and the oil cylinders 8 are installed on the corresponding oil cylinder brackets 7, and the oil cylinder brackets 7 are fixedly installed on one end of the housing 1 through supporting channel steels 11;

[0009] The scraper frame 12 is arranged on both sides of one end of the housing 1 away from the oil cylinder 8 , one end of the scraper 13 is installed on the middle horizontal axis of the scraper frame 12 through a telescopic mechanism 14 , and the other end is close to the upper side of the arc plate 4 .

[0010] Furthermore, the top of the shell 1 is fixedly connected to the bottom of the silo via a flange 5, and both the shell 1 and the flange 5 are made of Q235-A steel material.

[0011] Furthermore, the radius R of the sector plate 2 satisfies the following formula:

[0012]

[0013] In the formula, is the angle of the sector plate, and a is the transverse length of the shell 1.

[0014] Furthermore, the rotating shafts 3 are all made of 45# steel, and the sector plates 2 are all sleeved on the corresponding rotating shafts 3 through sleeves 9 .

[0015] Furthermore, the oil cylinders 8 are all connected to an electric drive mechanism, and sealing glands 10 are installed at the ends of the oil cylinders 8 .

[0016] Furthermore, the pushing length L of the oil cylinder 8 satisfies the following formula:

[0017] L=(0.8~1.2)×a

[0018] Wherein, a is the transverse length of the housing 1.

[0019] Furthermore, the supporting channel steel 11 includes a main channel steel and two connecting channel steels. The top of the main channel steel is fixedly installed on one end of the shell 1 through the connecting channel steels, and the two ends of the bottom of the main channel steel are fixedly connected to two cylinder brackets 7 respectively.

[0020] Furthermore, the telescopic mechanism 14 is installed on the connecting horizontal axis between the scraper frames 12 on both sides, and is used for installing the scraper 13 and adjusting the extension length of the scraper 13 .

[0021] 2. A method for cleaning the fan-shaped valve to prevent material blocking in a silo

[0022] Based on the same inventive concept, the present invention also provides a fan-shaped valve cleaning method using the above-mentioned silo anti-blocking fan-shaped valve cleaning system, which specifically includes the following steps:

[0023] S1, install the scraper frame at the side of the housing away from the oil cylinder, and install the scraper into the telescopic mechanism at the end of the scraper frame;

[0024] S2, adjust the extension length of the scraper through the telescopic mechanism, so that the scraper is close to the upper side of the arc plate, and fix the scraper position to remain unchanged;

[0025] S3, when the fan valve starts to work, the arc plate moves with the fan plate around the rotating shaft as the center. During this process, the upper side of the arc plate and the scraper form a relative movement to clean the surface of the arc plate;

[0026] S4, when the fan valve works for a preset number of times, the scraper is extended to a preset length through the telescopic mechanism to offset the scraper wear caused by repeated friction between the scraper and the arc plate.

[0027] Furthermore, when the total length of the scraper does not meet the requirement, the scraper is removed from the scraper holder and replaced.

[0028] Compared with the prior art, the present invention has the following main advantages:

[0029] 1. Improve material discharge efficiency: The accumulated slag at the bottom of the fan-shaped valve can be automatically cleaned every time the fan-shaped valve is opened and closed, which can ensure smooth discharge of materials, prevent the occurrence of material slabs, and thus improve material discharge efficiency.

[0030] 2. Reduce equipment failures: It can effectively prevent slag compaction caused by slag accumulation, and the resulting fan valve blocking and damage, thereby extending the service life of the equipment.

[0031] 3. Reduce maintenance costs: Traditional equipment slag cleaning is time-consuming and labor-intensive, and the maintenance time is long and the cost is high. The present invention reduces the downtime caused by equipment failure and reduces the cost of repair and replacement; it can also reduce the number of manual slag cleaning times and reduce the overall slag cleaning cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall schematic diagram of a fan-shaped valve cleaning system for preventing material blocking in a silo according to an embodiment of the present invention;

[0033] Figure 2 It is a top view of the electro-hydraulic fan-shaped valve structure of the silo in the embodiment of the present invention;

[0034] Figure 3 It is a front view of the electro-hydraulic fan-shaped valve structure of the silo in the embodiment of the present invention;

[0035] Figure 4Flow chart of the cleaning method in an embodiment of the present invention.

[0036] In the figure: 1-housing, 2-sector plate, 3-rotating shaft, 4-arc plate, 5-flange, 6-fork head connecting seat, 7-cylinder bracket, 8-cylinder, 9-sleeve, 10-sealing gland, 11-supporting channel steel, 12-scraper frame, 13-scraper, 14-telescopic mechanism. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0039] Embodiment 1: This embodiment provides a fan-shaped valve cleaning system for preventing material blocking in a silo, such as Figures 1 to 3 As shown, it mainly includes the electro-hydraulic fan-shaped valve structure of the silo and the anti-blocking scraper cleaning device;

[0040] The electro-hydraulic fan-shaped valve structure of the silo includes a housing 1, a fan-shaped plate 2, a rotating shaft 3, an arc plate 4, a flange 5, a fork connector 6, a cylinder bracket 7, a cylinder 8, a sleeve 9, a sealing gland 10 and a supporting channel steel 11, and the anti-blocking scraper cleaning device includes a scraper frame 12, a scraper 13 and a telescopic mechanism 14;

[0041] The housing 1 is symmetrically provided with rotating shafts 3, and the ends of the two rotating shafts 3 are rotatably connected with sector plates 2, and the bottoms of the two sector plates 2 are connected by arc plates 4, and the shape of the arc plates 4 is adapted to the arc surface shape of the bottom of the housing 1; the outer sides of the sector plates 2 are connected to the corresponding oil cylinders 8 through fork connecting seats 6, and the oil cylinders 8 are installed on the corresponding oil cylinder brackets 7, and the oil cylinder brackets 7 are fixedly installed on one end of the housing 1 through supporting channel steels 11;

[0042] The scraper frame 12 is arranged on both sides of one end of the housing 1 away from the oil cylinder 8 , one end of the scraper 13 is installed on the middle horizontal axis of the scraper frame 12 through a telescopic mechanism 14 , and the other end is close to the upper side of the arc plate 4 .

[0043] Furthermore, the top of the shell 1 is fixedly connected to the bottom of the silo via a flange 5, and both the shell 1 and the flange 5 are made of Q235-A steel material.

[0044] Furthermore, the radius R of the sector plate 2 satisfies the following formula:

[0045]

[0046] In the formula, is the angle of the sector plate, and a is the transverse length of the shell 1.

[0047] Furthermore, the rotating shafts 3 are all made of 45# steel, and the sector plates 2 are all sleeved on the corresponding rotating shafts 3 through sleeves 9 .

[0048] Furthermore, the oil cylinders 8 are all connected to an electric drive mechanism, and sealing glands 10 are installed at the ends of the oil cylinders 8 .

[0049] Furthermore, the pushing length L of the oil cylinder 8 satisfies the following formula:

[0050] L=(0.8~1.2)×a

[0051] Wherein, a is the transverse length of the housing 1.

[0052] Furthermore, the supporting channel steel 11 includes a main channel steel and two connecting channel steels. The top of the main channel steel is fixedly installed on one end of the shell 1 through the connecting channel steels, and the two ends of the bottom of the main channel steel are fixedly connected to two cylinder brackets 7 respectively.

[0053] Furthermore, the telescopic mechanism 14 is installed on the connecting horizontal axis between the scraper frames 12 on both sides, and is used for installing the scraper 13 and adjusting the extension length of the scraper 13 .

[0054] Embodiment 2: This embodiment provides a silo anti-blocking fan-shaped valve cleaning system, which is specifically composed of a shell 1, a fan-shaped plate 2, a rotating shaft 3, an arc plate 4, a flange 5, a fork connector 6, a cylinder bracket 7, a cylinder 8, a sleeve 9, a sealing gland 10, a supporting channel steel 11, a scraper frame 12, a scraper 13 and a telescopic mechanism 14; these components are mainly made of Q235-A steel, some sleeves are made of HT250 material, and the rotating shaft is made of 45 steel.

[0055] Furthermore, the shell 1 serves as the basic frame of the entire gate and is also a place for storing materials. The shell is made of Q235-A material, is square in longitudinal view, and has a side length of 700 mm. The shell provides support and fixing points for other components.

[0056] Furthermore, the fan-shaped plate 2 consists of two pieces, which are made of Q235-A material and are the key movable part of the gate. The fan-shaped plate is fan-shaped and connected by a rotating shaft with a radius of 720mm. The bottom of the fan-shaped plate is expanded to increase the size of the arc plate to better realize the opening and closing action to control the material.

[0057] Furthermore, the cross section of the fan-shaped plate needs to be greater than the transverse length a of the shell (i.e. 700 mm) and exceed a portion. Suppose the angle of the fan-shaped plate is The radius is R, which satisfies the following formula:

[0058]

[0059] There are two rotating shafts 3, each 870 mm long and made of No. 45 steel. They are key components for connecting the fan-shaped plates to ensure that the fan-shaped plates can rotate flexibly.

[0060] Furthermore, there are two rotating shafts 3, each 870 mm long and made of No. 45 steel. They are key components for connecting the fan-shaped plates to ensure that the fan-shaped plates can rotate flexibly.

[0061] Furthermore, the arc plate 4 is made of Q235-A material, and is a square of 870mm*870mm in a top view, and cooperates with the fan-shaped plate to form a sealing surface of the gate to ensure the blocking of materials.

[0062] Furthermore, the flange 5 is made of Q235-A material and is used to connect and fix the shell and other components to ensure the stability of the structure.

[0063] Furthermore, there are two fork connecting seats 6, which are made of Q235-A material and are used to connect the oil cylinder to transmit the thrust of the oil cylinder to the fan plate.

[0064] Furthermore, there are two cylinder brackets 7, which are made of Q235-A material and are used to fix the cylinder to ensure the stability of the cylinder when working.

[0065] Furthermore, there are two oil cylinders 8, which serve as the power source of the gate and drive the opening and closing of the sector plate through the hydraulic system. The angle of the oil cylinder should be greater than the angle of the sector plate. Therefore, the length L of the cylinder should be roughly equal to a, that is,

[0066] L=(0.8~1.2)×a

[0067] Furthermore, there are two bushings 9, which are made of Q235-A and HT250 materials and are installed on the rotating shaft to reduce friction and protect the rotating shaft.

[0068] Furthermore, there are two sealing glands 10, which are made of Q235-A material and are used to seal the oil cylinder to prevent hydraulic oil leakage.

[0069] Furthermore, the support channel steel 11 is used to strengthen the structure and provide additional support and stability. Among them, the channel steel of 140×60L=1324 is used as the main support structure, and the channel steel of 140×60L=450 is used for auxiliary support.

[0070] With the cooperation of the above components, the motor pushes the oil cylinder and transmits the thrust of the oil cylinder to the fan plate, which drives the arc plate to control the flow blocking of materials. There are two water leakage holes on the fan plate, which can make the water in the slag flow out to the recovery well for secondary recycling.

[0071] Furthermore, the scraper frame 12 and the scraper 13 are located at the lower edge of the housing, the scraper frame 12 is located on both sides of the housing, and the scraper 13 is installed on the middle connecting horizontal axis of the scraper frames 12 on both sides through the telescopic mechanism 14;

[0072] The exposed portion of the scraper is 5 mm and is close to the upper surface of the arc plate, and the total length L of the scraper should be between the arc plate and the shell, specifically satisfying

[0073]

[0074] Wherein H is the total height of the scraper frame and the shell, and h is the height of the shell.

[0075] Specific:

[0076] 1) Scraper position: The scraper holder is located at the bottom of the shell, away from the cylinder, and does not touch the arc plate. The scraper is installed on the scraper holder, and the scraper length is adjustable. After the scraper is close to the upper side of the arc plate, the scraper length and position remain fixed.

[0077] 2) The scraper driving method is: when the fan valve is switched once, the arc plate moves with the fan plate around the rotating shaft. During this process, the upper edge of the arc plate and the scraper form a relative motion. It can also be understood that each switch of the fan valve is a drive of the scraper.

[0078] 3) Scraper replacement device: When the scraper is worn out due to repeated friction between the scraper and the arc plate, the scraper can be partially pulled out from the telescopic mechanism of the scraper holder so that the scraper continues to be close to the arc plate and can continue to be used. When the total length of the scraper is not enough, the scraper can be removed from the scraper holder and replaced.

[0079] Embodiment 3, based on the same inventive concept, this embodiment also provides a fan-shaped valve cleaning method using the above-mentioned silo anti-blocking fan-shaped valve cleaning system, such as Figure 4 As shown, the specific steps include:

[0080] S1, install the scraper frame at the side of the housing away from the oil cylinder, and install the scraper into the telescopic mechanism at the end of the scraper frame;

[0081] S2, adjust the extension length of the scraper through the telescopic mechanism, so that the scraper is close to the upper side of the arc plate, and fix the scraper position to remain unchanged;

[0082] S3, when the fan valve starts to work, the arc plate moves with the fan plate around the rotating shaft as the center. During this process, the upper side of the arc plate and the scraper form a relative movement to clean the surface of the arc plate;

[0083] S4, when the fan valve works for a preset number of times, the scraper is extended to a preset length through the telescopic mechanism to offset the scraper wear caused by repeated friction between the scraper and the arc plate.

[0084] Furthermore, when the total length of the scraper does not meet the requirement, the scraper is removed from the scraper holder and replaced.

[0085] Furthermore, all parts involved in this application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0086] In summary:

[0087] The present invention can effectively solve the problems of material compaction and poor material discharge in the silo by innovatively combining the "silo electro-hydraulic fan-shaped valve structure" and the innovatively designed "anti-blocking scraper cleaning device", greatly reducing the failure rate of the silo fan-shaped valve, and providing a strong guarantee for the normal operation of the unloading; at the same time, it also greatly reduces the work intensity of the slag cleaning personnel, saving manpower, material and financial costs; for on-site management, water leakage and slag leakage create great safety hazards, which is not conducive to on-site management. After the water leakage and slag leakage are solved by the present invention, the safety hazards can be better eliminated and the on-site management work can be completed; at the same time, from the perspective of environmental protection, the present invention is more conducive to product recycling and more in line with the concept of environmental protection.

[0088] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fan-shaped valve cleaning system for preventing material blockage in a silo, characterized in that: include: A silo electro-hydraulic fan-shaped valve structure and an anti-blocking scraper cleaning device, wherein the silo electro-hydraulic fan-shaped valve structure comprises a housing (1), a fan-shaped plate (2), a rotating shaft (3), an arc plate (4), a flange (5), a fork head connecting seat (6), a cylinder bracket (7), a cylinder (8), a shaft sleeve (9), a sealing gland (10) and a supporting channel steel (11); and the anti-blocking scraper cleaning device comprises a scraper frame (12), a scraper (13) and a telescopic mechanism (14); Rotating shafts (3) are symmetrically mounted on both sides of the housing (1), and the ends of the two rotating shafts (3) are rotatably connected to sector plates (2), and the bottoms of the two sector plates (2) are connected by an arc plate (4), and the shape of the arc plate (4) is adapted to the arc surface shape of the bottom of the housing (1); the outer sides of the sector plates (2) are connected to corresponding oil cylinders (8) by fork head connecting seats (6), and the oil cylinders (8) are mounted on corresponding oil cylinder brackets (7), and the oil cylinder brackets (7) are fixedly mounted on one end of the housing (1) by supporting channel steels (11); The scraper frame (12) is arranged on both sides of one end of the housing (1) away from the oil cylinder (8), one end of the scraper (13) is installed on the middle horizontal axis of the scraper frame (12) through a telescopic mechanism (14), and the other end is closely attached to the upper side of the arc plate (4).

2. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The top of the shell (1) is fixedly connected to the bottom of the silo via a flange (5), and both the shell (1) and the flange (5) are made of Q235-A steel material.

3. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The radius R of the sector plate (2) satisfies the following formula: In the formula, is the angle of the sector plate, and a is the transverse length of the shell (1).

4. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The rotating shafts (3) are all made of No. 45 steel, and the sector plates (2) are sleeved on the corresponding rotating shafts (3) through sleeves (9).

5. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The oil cylinders (8) are all connected to an electric drive mechanism, and sealing glands (10) are installed at the ends of the oil cylinders (8).

6. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The pushing length L of the oil cylinder (8) satisfies the following formula: L=(0.8~1.2)×a In the formula, a is the transverse length of the shell (1).

7. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The supporting channel steel (11) comprises a main channel steel and two connecting channel steels. The top of the main channel steel is fixedly mounted on one end of the housing (1) via the connecting channel steels. The bottom ends of the main channel steel are respectively fixedly connected to two oil cylinder brackets (7).

8. A silo anti-blocking fan-shaped valve cleaning system according to claim 1, characterized in that: The telescopic mechanism (14) is installed on the connecting transverse axis between the scraper frames (12) on both sides, and is used for installing the scraper (13) and adjusting the extension length of the scraper (13).

9. A fan-shaped valve cleaning method using the fan-shaped valve cleaning system for preventing material blocking in a silo as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1, install the scraper frame at the side of the housing away from the oil cylinder, and install the scraper into the telescopic mechanism at the end of the scraper frame; S2, adjust the extension length of the scraper through the telescopic mechanism, so that the scraper is close to the upper side of the arc plate, and fix the scraper position to remain unchanged; S3, when the fan valve starts to work, the arc plate moves with the fan plate around the rotating shaft as the center. During this process, the upper side of the arc plate and the scraper form a relative movement to clean the surface of the arc plate; S4, when the fan valve works for a preset number of times, the scraper is extended to a preset length through the telescopic mechanism to offset the scraper wear caused by repeated friction between the scraper and the arc plate.

10. A silo anti-blocking fan-shaped valve cleaning system according to claim 9, characterized in that: When the total length of the scraper does not meet the requirements, the scraper is removed from the scraper holder and replaced.

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