A uniform distribution device for desulfurization wastewater concentrate to gypsum dewatering belt conveyor

Abstract

This utility model relates to the field of gypsum dewatering technology and discloses a device for uniformly distributing concentrated desulfurization wastewater onto a gypsum dewatering belt conveyor. The device includes a belt dewatering machine body and a distributor. A mounting plate is symmetrically fixed to the belt dewatering machine body. The distributor includes two symmetrically arranged locking blocks, both of which are engaged with the mounting plate. A support column is fixed to the top of each locking block, and a lifting column slides within the support column. A cloth frame is fixed to the top surface of the lifting column, and an adjusting component is installed on the cloth frame. The adjusting component includes a rotating rod, on which multiple rotating seats are mounted. A buckle is fixed to the side wall of each rotating seat, and a nozzle is engaged with the buckle. This utility model enables the spacing between multiple nozzles to vary uniformly, adapting to gypsum dewatering belts of different widths. It also effectively adjusts the nozzle spray angle according to requirements, ensuring that the concentrated desulfurization wastewater is sprayed at the optimal angle, resulting in a uniform distribution of the concentrated liquid on the surface of the gypsum filter cake.

Description

Technical Field

[0001] This utility model relates to the field of gypsum dewatering technology, specifically a device for uniformly distributing concentrated desulfurization wastewater to a gypsum dewatering conveyor belt. Background Technology

[0002] With increasingly stringent environmental protection requirements, zero-discharge technology for desulfurization wastewater from coal-fired power plants has become an inevitable trend in the industry. Desulfurization wastewater concentrate is typically treated in two ways: one is by directly discharging it into a gypsum slurry tank for mixing and co-treatment with the gypsum slurry; the other is by treating it through a separate evaporation and crystallization system. However, the first method has significant technical drawbacks: First, fine particles in the wastewater concentrate can clog the filter cloth pores of the dewatering conveyor belt, leading to increased gypsum moisture content and affecting gypsum quality; second, the adhesive properties of the wastewater concentrate reduce the washing effect of the conveyor belt, and long-term operation can shorten the service life of the filter cloth; third, the high concentration of chloride ions in the concentrate accelerates equipment corrosion. While the second method, evaporation and crystallization, avoids these problems, it suffers from high investment costs, high energy consumption, and complex maintenance.

[0003] In the process of dehydrating gypsum, a dehydration belt conveyor is used. The dehydration belt conveyor mainly consists of a vacuum box, filter cloth, roller, transmission device, filter distributor, etc. The working principle of the dehydration belt conveyor is to send the suspension containing solid particles into the vacuum box, filter it through the filter cloth to form a filter cake, and then press the filter cake to dehydrate it through vacuum suction, discharge the filtrate, and finally remove the dried filter cake from the filter cloth.

[0004] Most of the distributors equipped with gypsum dewatering machines on the market currently adopt a fixed structure design. However, in actual use, this fixed structure cannot be flexibly adapted and adjusted according to the width of the gypsum dewatering belt. When the belt width changes, the nozzle spacing is difficult to match with the belt width, which easily leads to uneven distribution of desulfurization wastewater concentrate on the belt. Furthermore, the nozzle angle cannot be adjusted, making it difficult to accurately adjust to the optimal spray angle. This results in localized accumulation of concentrate and excessively high concentration, directly affecting the stability and efficiency of gypsum dewatering.

[0005] Therefore, we propose a device for uniformly distributing concentrated desulfurization wastewater to a gypsum dewatering conveyor belt to solve the aforementioned problems. Utility Model Content

[0006] The purpose of this utility model is to provide a uniform distribution device for desulfurization wastewater concentrate to gypsum dewatering belt conveyor, so as to solve the problems mentioned in the background art that the existing uniform distribution devices cannot be flexibly adapted and adjusted according to the width of the gypsum dewatering belt and are not easy to adjust the nozzle angle, making it difficult to accurately adjust to the optimal spray angle.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a uniform distribution device for a belt conveyor for desulfurization wastewater concentrate to gypsum dewatering, comprising a belt dewatering machine body and a distributor. A mounting plate is symmetrically fixed on the belt dewatering machine body. The distributor includes two symmetrically arranged locking blocks, both of which are engaged with the mounting plate. A support column is fixed to the top of each locking block, and a lifting column slides within the support column. A lifting assembly is installed on the support column. A cloth frame is fixed to the top surface of the lifting column, and an adjustment assembly is installed on the cloth frame. The adjustment assembly includes two support blocks symmetrically fixed on the cloth frame, and a rotating rod is rotatably connected between the two support blocks. Multiple rotating seats are installed on the rotating rod, and buckles are fixed to the side walls of the rotating seats, with nozzles engaged on the buckles.

[0008] Preferably, the lifting assembly includes a cavity formed within the support column, the lifting column is slidably connected to the cavity, and a screw hole is formed on the side wall of the support column, with a threaded rod installed in the screw hole.

[0009] Preferably, the lifting column has multiple screw holes II, which are arranged linearly and are threadedly connected to the threaded rod.

[0010] Preferably, two support blocks are symmetrically fixed on the fabric frame, and a guide rod is fixed between the two support blocks. An L-shaped slider one is fixed at the center of the guide rod, and multiple L-shaped slider twos are slidably connected to the guide rod. A scissor link is hinged between the L-shaped slider one and the multiple L-shaped slider twos.

[0011] Preferably, two support plates are symmetrically fixed on the fabric frame. A motor is fixed to the side wall of one of the support plates. A bidirectional screw is fixed to the output end of the motor. The bidirectional screw is rotatably connected to the two support plates. A sliding block is fixed on the L-shaped slider two near both sides. The sliding block is fixedly connected to the L-shaped slider two and threadedly connected to the bidirectional screw.

[0012] Preferably, a second motor is fixed to the side wall of the support block, a rotating rod is fixedly connected to the output end of the second motor, a card plate is fixed to the outer wall of the rotating rod, and a card slot is opened in the rotating seat, with the card plate and the card slot being adapted to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The double-headed screw is driven by motor one to rotate. Through the linkage of components such as sliding blocks and L-shaped sliders, combined with the action of scissor fork connecting rods, the spacing of multiple nozzles can be uniformly varied to adapt to gypsum dewatering belts of different widths. Motor two drives the rotating rod to rotate. The angle of the rotating seat and nozzles can be adjusted by the cooperation of the clamping plate and the clamping groove, ensuring that the concentrated desulfurization wastewater is sprayed at the optimal angle. The precise adjustment of the spacing and angle fundamentally ensures the uniform distribution of the concentrated liquid on the surface of the gypsum filter cake and avoids the problem of excessively high local concentration.

[0015] 2. The distribution of multiple nozzles ensures uniform distribution of the concentrated liquid, allowing the gypsum filter cake to fully contact the concentrated liquid. This results in a more uniform and thorough dehydration process, effectively improving the dehydration effect. At the same time, it avoids the problem of gypsum quality degradation caused by excessive concentrated liquid in certain areas, ensuring the quality stability of the final gypsum product and meeting the requirements for subsequent processing or discharge.

[0016] 3. The design of the lifting assembly allows for flexible adjustment of the distributor height according to actual working conditions. When changes in belt tension cause variations in filter cake thickness or fluctuations in concentrated liquid solids content, simply rotating the threaded rod handwheel allows the lifting column to slide freely within the support cavity. After adjusting to the appropriate height, the threaded rod is locked in place by engaging the corresponding screw hole. This function ensures that the nozzle maintains the optimal distance from the belt surface, adapting to the spraying requirements under different working conditions and improving the device's adaptability to complex working environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the lifting component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model. Figure 1 ;

[0021] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 This is a schematic diagram of the adjustment component structure of this utility model. Figure 2 ;

[0023] Figure 7 This is a schematic diagram of some components of the adjustment assembly of this utility model.

[0024] In the diagram: 1. Belt dewatering machine body; 2. Mounting plate; 3. Distributor; 4. Clamping block; 5. Support column; 6. Lifting column; 7. Lifting assembly; 71. Cavity; 72. Screw hole one; 73. Threaded rod; 74. Screw hole two; 8. Fabric frame; 9. Adjustment assembly; 91. Support block; 92. Guide rod; 93. L-shaped slider one; 931. L-shaped slider two; 94. Scissor fork connecting rod; 95. Support plate; 96. Motor one; 97. Bidirectional screw; 98. Sliding block; 99. Support block; 910. Motor two; 911. Rotating rod; 912. Clamping plate; 921. Clamping slot; 913. Rotary seat; 914. Buckle; 915. Nozzle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figure 1 - Figure 3 A distribution device for a belt conveyor for desulfurization wastewater concentrate to gypsum dewatering includes a belt dewatering machine body 1 and a distributor 3. A mounting plate 2 is symmetrically fixed to the belt dewatering machine body 1. The distributor 3 includes two symmetrically arranged locking blocks 4. The inner cross-section of each locking block 4 is U-shaped, with the opening size matching the thickness of the mounting plate 2. A polytetrafluoroethylene (PTFE) wear-resistant gasket is embedded on the inner side to ensure locking stability and avoid wear caused by hard metal-to-metal contact. Both locking blocks 4 are locked to the mounting plate 2. A support column 5 is fixed to the top of each locking block 4. A lifting column 6 slides within the support column 5. A lifting assembly 7 is installed on the support column 5. The lifting assembly 7 includes a cavity 71 opened within the support column 5. The lifting column 6 is slidably connected to the cavity 71. A threaded hole 72 is opened on the side wall of the support column 5, and a threaded rod 73 is threaded into the threaded hole 72.

[0027] The lifting column 6 has multiple screw holes 74, which are arranged linearly and are threaded to the threaded rod 73.

[0028] In this embodiment: the device achieves rapid positioning and installation through the snap-fit ​​structure between the snap-fit ​​block 4 and the mounting plate 2. The height of the distributor array 3 is adjusted by the lifting component 7, so that the nozzle 915 and the belt surface are dynamically adjusted to the optimal distance according to the characteristics of the concentrate and the belt running speed. Finally, the desulfurization wastewater concentrate is evenly distributed on the surface of the gypsum filter cake. It works in conjunction with the concentrate conveying and automatic control systems of the original uniform distribution device to complete the entire process of conveying, adjusting and distributing.

[0029] When the height of distributor 3 needs to be adjusted, the threaded rod 73 is disengaged from the current threaded hole 74 by rotating the handwheel of the threaded rod 73, thereby disengaging from the threaded connection with the lifting column 6. At this time, the lifting column 6 can slide freely up and down in the cavity 71 of the support column 5. Then, according to the actual needs such as the change in filter cake thickness and the fluctuation of concentrated liquid solid content caused by the change in belt tension, the lifting column 6 is moved to a suitable height so that the nozzle 915 is in the optimal spray position. Then, the threaded rod 73 is screwed into the threaded hole 74 of the corresponding height and locked to complete the height fixation.

[0030] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 1 - Figure 2 , Figure 4 - Figure 7 A belt conveyor for desulfurization wastewater concentrate to gypsum dewatering is disclosed, comprising a belt dewatering machine body 1 and a distributor 3. The belt dewatering machine body 1 is the basic load-bearing component of the entire device and is used for gypsum dewatering treatment. A mounting plate 2 is symmetrically fixed on the belt dewatering machine body 1. The distributor 3 includes two symmetrically arranged locking blocks 4, both of which are engaged with the mounting plate 2. A support column 5 is fixed to the top of the locking block 4, and a lifting column 6 slides inside the support column 5. A cloth frame 8 is fixed to the top surface of the lifting column 6, and an adjustment component 9 is installed on the cloth frame 8. The adjustment component 9 includes two support blocks 99 symmetrically fixed on the cloth frame 8, and a rotating rod 911 is rotatably connected between the two support blocks 99. Multiple rotating seats 913 are installed on the rotating rod 911, and a buckle 914 is fixed to the side wall of the rotating seat 913. A nozzle 915 is engaged with the buckle 914.

[0031] Two support blocks 91 are symmetrically fixed on the fabric frame 8. A guide rod 92 is fixed between the two support blocks 91. An L-shaped slider 93 is fixed at the center of the guide rod 92. Multiple L-shaped sliders 931 are slidably connected to the guide rod 92. A scissor link 94 is hinged between the L-shaped slider 93 and the multiple L-shaped sliders 931. Both the L-shaped slider 93 and the L-shaped sliders 931 are provided with sliding holes that are adapted to the guide rod 92. Wear-resistant bushings are installed in the sliding holes to reduce friction during sliding.

[0032] Two support plates 95 are symmetrically fixed on the fabric frame 8. A motor 96 is fixed to the side wall of one of the support plates 95. A bidirectional screw 97 is fixed to the output end of the motor 96. The bidirectional screw 97 is rotatably connected to the two support plates 95. A sliding block 98 is fixed on the L-shaped slider 931 near both sides. The sliding block 98 is fixedly connected to the L-shaped slider 931. The sliding block 98 is threadedly connected to the bidirectional screw 97.

[0033] A second motor 910 is fixed to the side wall of the support block 99. A rotating rod 911 is fixedly connected to the output end of the second motor 910. A card plate 912 is fixed to the outer wall of the rotating rod 911. A slot 921 is opened in the rotating seat 913. The card plate 912 is adapted to the slot 921.

[0034] In this embodiment: First, the two locking blocks 4 of the distributor 3 are precisely locked into the mounting plate 2 groove of the belt dewatering machine body 1 to achieve initial fixation of the device. Then, according to the actual height requirements of the gypsum dewatering belt machine, the sliding position of the lifting column 6 in the support column 5 is adjusted to make the nozzle 915 reach the ideal spraying height. After the adjustment is completed, the locking bolts on the support column 5 are tightened to complete the stable fixation of the lifting column 6 and ensure that the height of the nozzle 915 remains stable in subsequent operations.

[0035] After the overall position of the device is adjusted, the spacing of the multiple nozzles 915 needs to be adjusted according to the different widths of the gypsum dehydration belt. Specifically, motor 96 is started, and its output power drives the bidirectional screw 97 to rotate. Since the threads at both ends of the bidirectional screw 97 rotate in opposite directions, and the sliding blocks 98 on both sides are threadedly connected to both ends of the screw, the rotation of the bidirectional screw 97, under the action of threaded transmission, will cause the two sliding blocks 98 to move synchronously in opposite directions. The sliding blocks 98 then drive the L-shaped slider 931 fixed to them to slide smoothly on the guide rod 92. Simultaneously, because the L-shaped slider 931 is rotatably connected to the rotating seat 913 and the buckle 914 is fixedly connected to the rotating seat 913, and multiple nozzles 915 are installed on the rotating seat 913, during the sliding adjustment of the L-shaped slider 931, the rotating seat 913, the L-shaped slider 931, the buckle 914 and the nozzles 915 will move horizontally in sync. Under the linkage of the scissor lift rod 94, the distance between the L-shaped slider 93 and the multiple L-shaped sliders 931 will change uniformly, ultimately achieving precise adjustment of the nozzle spacing to adapt to dewatering belts of different widths.

[0036] After adjusting the nozzle 915 spacing, start the dewatering conveyor belt to begin the gypsum dewatering operation. If the spray angle of the nozzle 915 needs to be adjusted during the dewatering process, start the second motor 910. The second motor 910 drives the rotating rod 911 to rotate. The retaining plate 912 on the outer wall of the rotating rod 911 is embedded in the retaining groove 921 of the rotating seat 913. Through the matching transmission between the retaining plate 912 and the retaining groove 921, the rotating seat 913 is driven to rotate synchronously, thereby enabling the nozzle 915 to complete the angle adjustment around the rotating seat 913. This further realizes the precise control of the spray angle of the nozzle 915, ensuring that the concentrated desulfurization wastewater is sprayed onto the dewatering conveyor belt at the optimal angle.

[0037] Finally, the nozzle 915 is connected to the desulfurization wastewater concentrate conveying pipe. Under the conveying pressure, the concentrate is atomized through the nozzle 915 and evenly sprayed onto the belt of the gypsum dewatering conveyor. Thanks to the flexible adjustment function of the nozzle 915 spacing and angle, combined with the collaborative operation design of multiple nozzles 915, the desulfurization wastewater concentrate can be evenly distributed on the belt, which not only improves the gypsum dewatering efficiency, but also effectively avoids the problem of affecting the dewatering effect due to excessively high local concentration of concentrate.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A desulfurization wastewater concentrated liquid to gypsum dewatering belt machine uniform distribution device, comprising a belt dewatering machine body (1) and a distributor (3), characterized in that: The belt dewatering machine body (1) is symmetrically fixed with mounting plates (2). The distributor (3) includes two symmetrically arranged locking blocks (4). Both locking blocks (4) are locked to the mounting plate (2). The top of the locking block (4) is fixed with a support column (5). A lifting column (6) slides inside the support column (5). A lifting component (7) is installed on the support column (5). A cloth frame (8) is fixed on the top surface of the lifting column (6). An adjustment component (9) is installed on the cloth frame (8). The adjustment component (9) includes two support blocks (99) symmetrically fixed on the cloth frame (8). A rotating rod (911) is rotatably connected between the two support blocks (99). Multiple rotating seats (913) are installed on the rotating rod (911). A buckle (914) is fixed on the side wall of the rotating seat (913). A nozzle (915) is locked on the buckle (914).

2. The uniform distribution device for desulfurization wastewater concentrated liquid to gypsum dehydration belt conveyor according to claim 1, characterized in that: The lifting assembly (7) includes a cavity (71) opened in the support column (5), the lifting column (6) is slidably connected to the cavity (71), and a screw hole (72) is opened on the side wall of the support column (5), and a threaded rod (73) is threadedly installed in the screw hole (72).

3. The uniform distribution device for desulfurization wastewater concentrated liquid to gypsum dehydration belt conveyor according to claim 2, characterized in that: The lifting column (6) has multiple screw holes (74) arranged in a linear pattern, and the screw holes (74) are threadedly connected to the threaded rod (73).

4. The device for uniformly distributing concentrated desulfurization wastewater to gypsum dewatering conveyor belt as described in claim 1, characterized in that: Two support blocks (91) are symmetrically fixed on the fabric frame (8). A guide rod (92) is fixed between the two support blocks (91). An L-shaped slider (93) is fixed at the center of the guide rod (92). Multiple L-shaped sliders (931) are slidably connected on the guide rod (92). A scissor link (94) is hinged between the L-shaped slider (93) and the multiple L-shaped sliders (931).

5. The device for uniformly distributing concentrated desulfurization wastewater to gypsum dewatering conveyor belt according to claim 4, characterized in that: Two support plates (95) are symmetrically fixed on the fabric frame (8). A motor (96) is fixed on the side wall of one of the support plates (95). A bidirectional screw (97) is fixed at the output end of the motor (96). The bidirectional screw (97) is rotatably connected to the two support plates (95). A sliding block (98) is fixed on the L-shaped slider (931) near both sides. The sliding block (98) is fixedly connected to the L-shaped slider (931). The sliding block (98) is threadedly connected to the bidirectional screw (97).

6. The device for uniformly distributing concentrated desulfurization wastewater to gypsum dewatering conveyor belt according to claim 5, characterized in that: The support block (99) has a motor (910) fixed to its side wall. The output end of the motor (910) is fixedly connected to a rotating rod (911). A card plate (912) is fixed to the outer wall of the rotating rod (911). A card slot (921) is opened in the rotating seat (913). The card plate (912) is adapted to the card slot (921).

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