Pretreatment device for industrial solid waste desulfurized gypsum

Abstract

The utility model relates to a pretreatment device for industrial solid waste desulfurized gypsum, which comprises a crushing bin, the top of the crushing bin is fixedly connected with a feeding channel, the inner side wall of the feeding channel is provided with an expanding groove, and two opposite wide sides in the expanding groove are both provided with a sealing assembly. The utility model relates to the technical field of desulfurization gypsum pretreatment. When the pretreatment device for the industrial solid waste desulfurized gypsum is used, the feeding channel can be sealed through the sealing assembly, dust leakage is avoided, meanwhile, the sealing door can be opened through the gravity generated when the desulfurized gypsum descends, and automatic closing is achieved when feeding is stopped, so that dust leakage is avoided during feeding, the practicability is improved, and the device is suitable for popularization and application. In addition, the sealing force of the sealing door can be adjusted to cope with different feeding amounts, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurized gypsum pretreatment, in particular to a pretreatment device for industrial solid waste desulfurized gypsum. Background Technique

[0002] Desulfurized gypsum, also known as flue gas desulfurized gypsum, sulfur gypsum or FGD gypsum, is a solid waste generated by removing sulfur dioxide (SO2) from flue gas through a flue gas desulfurization process after burning high-sulfur fuels such as coal or heavy oil. Its main component is calcium sulfate dihydrate (CaSO4·2H2O), with a content of over 93%, which is similar to the composition of natural gypsum. The generation process of desulfurized gypsum is the product of the progress of environmental protection technology, which effectively reduces the emission of SO2 in the atmosphere and plays a positive role in improving air quality.

[0003] In the prior art, the pretreatment device for industrial solid waste desulfurized gypsum proposed in the publication number CN221514759U includes a crushing box. A crushing roller is installed inside the crushing box. A guide plate is fixed at the bottom end inside the crushing box. A discharge port is fixed at the bottom end on one side of the crushing box. A support bar is fixed at the top end inside the crushing box. A fixed cover is fixed at the top end of the support bar. Hinge pieces are installed on one side of the top end of the fixed cover. A handle is fixed on one side of the top end of the movable cover. Support blocks are fixed on both sides of the bottom end of the crushing box. In the utility model, by providing a movable cover, during feeding, by pulling the handle upwards, the handle drives the movable cover to be pulled upwards and flips the movable cover to the top of the fixed cover. Then, an appropriate amount of desulfurized gypsum is put into the crushing box. By flipping the movable cover again, the movable cover is covered on the top end of the crushing box. At this time, the crushing box is in a closed state. The movable cover and the fixed cover can prevent dust from floating out, thereby playing a role in dust prevention.

[0004] This application can seal the crushing box through the movable cover plate to avoid the dispersion of dust. However, when new desulfurized gypsum needs to be put in after each batch of desulfurized gypsum is crushed, the movable cover needs to be opened. And a large amount of dust will remain in the crushed desulfurized gypsum. At this time, it is necessary to wait for the dust to settle before opening the movable cover to avoid the direct dispersion of dust when the movable cover is opened. And waiting for settlement will take a certain amount of time, thus affecting the crushing efficiency of desulfurized gypsum. Content of the Utility Model

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pretreatment device for industrial solid waste desulfurized gypsum to solve the technical problems mentioned in the above background technique.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A pretreatment device for industrial solid waste desulfurized gypsum, including a crushing bin, a feeding channel is fixedly connected to the top of the crushing bin, an expansion groove is opened on the inner side wall of the feeding channel, and sealing components are arranged on both relatively wide sides of the expansion groove;

[0008] The sealing components include two fixing blocks, a positioning shaft, an outer shaft sleeve, a positioning spring and a sealing door. The two fixing blocks are respectively fixedly installed at both ends of the wide side of the expansion groove. The positioning shaft is arranged between the two fixing blocks. The outer shaft sleeve is rotatably installed between the outer peripheral sides of the two fixing blocks. The sealing door is fixedly installed on the outer peripheral side of the outer shaft sleeve. The sealing door is horizontally arranged. The top side of the sealing door is attached to the top side wall of the expansion groove. The positioning spring is sleeved outside the positioning shaft. Both ends of the positioning spring are fixedly connected to the outer peripheral side of the positioning shaft and the inner peripheral side of the outer shaft sleeve respectively. An adjusting part is also arranged on the side of the feeding channel.

[0009] In a preferred example of the present utility model, it can be further configured that: the opposite sides of the two sealing doors are both arc-shaped, and the opposite sides of the two sealing doors are attached to each other.

[0010] In a preferred example of the present utility model, it can be further configured that: the adjusting part includes an adjusting portion and a limiting portion. The adjusting portion includes an adjusting groove, the adjusting groove is opened on the side of the feeding channel, an adjusting rod is rotatably connected in the adjusting groove, and the end of the adjusting rod passes through the corresponding fixing block and is fixedly connected to the end of the positioning shaft.

[0011] In a preferred example of the present utility model, it can be further configured that: the limiting portion includes a limiting tooth shaft, the limiting tooth shaft is fixedly connected to the end of the adjusting rod away from the positioning shaft, a tooth block corresponding to the limiting tooth shaft is fixedly connected to the end of the inner side wall of the adjusting groove, and a sliding groove matched with the positioning shaft is opened at the end of the fixing block away from the adjusting groove. The positioning shaft is inserted into the sliding groove and is slidably connected with the sliding groove.

[0012] In a preferred example of the present utility model, it can be further configured that: a limiting spring is fixedly connected to the inner end side wall of the sliding groove, and the end of the limiting spring is fixedly connected to the end of the positioning shaft.

[0013] In a preferred example of the present utility model, it can be further configured that: a hexagonal groove is opened at the end of the limiting tooth shaft away from the positioning shaft.

[0014] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0015] 1. The pretreatment device for industrial solid waste desulfurized gypsum can, when in use, seal the feeding channel through the sealing component to avoid dust leakage. At the same time, the gravity of the falling desulfurized gypsum can be used to open the sealing door, which will automatically close when the feeding stops, thus avoiding dust leakage during feeding, improving the practicability. In addition, the closing force of the sealing door can be adjusted to deal with different feeding amounts, improving the scope of application;

[0016] 2. The pretreatment device for industrial solid waste desulfurized gypsum is provided with an adjusting part that can rotate the corresponding adjusting rod, causing the adjusting rod to drive the positioning shaft to rotate. When the positioning shaft rotates, it will drive the positioning spring to rotate, thereby increasing or decreasing the torsional force of the positioning spring, and thus being able to adjust the force required to open the sealing door, and further being able to adapt to different feeding environments, improving the scope of application. Subsequently, the limiting part limits the adjusted adjusting rod, enabling the adjusted positioning shaft to be positioned and limited, and improving the stability of the adjusted positioning shaft;

[0017] 3. In the limiting part of the pretreatment device for industrial solid waste desulfurized gypsum, when rotating the adjusting shaft, first press the adjusting shaft. The adjusting shaft will be pressed into the chute, and at the same time, the limiting tooth shaft will disengage from the tooth block. Subsequently, rotate the adjusting shaft. After rotating to a certain angle, pull back the adjusting shaft. The adjusting shaft will drive the limiting tooth shaft to pull outwards, and then the tooth block will be used to catch the limiting tooth shaft, thereby achieving the effect of limiting the adjusting rod;

[0018] 4. The pretreatment device for industrial solid waste desulfurized gypsum is provided with a limiting spring. When pressing the adjusting shaft, it will drive the positioning shaft to squeeze the limiting spring, and the limiting spring will generate a certain reaction force. After the adjusting shaft is adjusted, when ensuring that the adjusting shaft will not flip, stop pressing the adjusting shaft. The reaction force of the limiting spring will assist the adjusting shaft to pull back, and then drive the limiting tooth shaft to catch on the tooth block, being able to quickly assist the adjusting shaft to pull back and the limiting tooth shaft to catch on the tooth block. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the pretreatment device for industrial solid waste desulfurized gypsum of the present invention.

[0021] Figure 2 It is a schematic diagram of the dissection structure of the pretreatment device for industrial solid waste desulfurized gypsum of the present invention.

[0022] Figure 3 Schematic diagram of the enlarged structure at position A in Figure 2 the present utility model.

[0023] Figure 4 Schematic diagram of the enlarged structure at position B in Figure 2 the present utility model.

[0024] In the figure, 1 is a crushing bin; 2 is a feeding channel; 3 is an enlarged groove; 4 is a closing assembly; 5 is a fixing block; 6 is a positioning shaft; 7 is an outer shaft sleeve; 8 is a positioning spring; 9 is a closing door; 10 is an adjusting member; 11 is an adjusting groove; 12 is an adjusting rod; 13 is a limiting gear shaft; 14 is a gear block; 15 is a sliding groove; 16 is a limiting spring; 17 is a hexagonal groove. Specific embodiments

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Embodiment:

[0027] Referring to Figures 1-4 , a pretreatment device for industrial solid waste desulfurized gypsum disclosed by the present utility model includes a crushing bin 1. A feeding channel 2 is fixedly connected to the top of the crushing bin 1. An enlarged groove 3 is formed on the inner side wall of the feeding channel 2. Closing assemblies 4 are arranged on two opposite wide sides of the enlarged groove 3;

[0028] The closing assembly 4 includes two fixing blocks 5, a positioning shaft 6, an outer shaft sleeve 7, a positioning spring 8 and a closing door 9. The two fixing blocks 5 are respectively fixedly installed at both ends of the wide side of the enlarged groove 3. The positioning shaft 6 is arranged between the two fixing blocks 5. The outer shaft sleeve 7 is rotatably installed between the outer peripheral sides of the two fixing blocks 5. The closing door 9 is fixedly installed on the outer peripheral side of the outer shaft sleeve 7. The closing door 9 is horizontally arranged. The top side of the closing door 9 is in contact with the top side wall of the enlarged groove 3. The positioning spring 8 is sleeved on the outer side of the positioning shaft 6. The two ends of the positioning spring 8 are respectively fixedly connected to the outer peripheral side of the positioning shaft 6 and the inner peripheral side of the outer shaft sleeve 7. An adjusting member 10 is further arranged on the side of the feeding channel 2.

[0029] In this embodiment, when in use, a crushing structure and a pulverizing structure can be installed in the crushing box at this time, and the pulverizing mechanism and the crushing mechanism are the same as those in the prior art. When desulfurized gypsum is put into the feeding channel 2, pressure will be applied to the closing door 9 at this time, driving the closing door 9 to rotate downward, and then driving the outer shaft sleeve 7 to rotate clockwise. At the same time, when the outer shaft sleeve 7 rotates clockwise, a torsional force will also be applied to the positioning spring 8. The positioning spring 8 is the same as the torsion spring in the prior art. After the desulfurized gypsum is put in, the closing door 9 loses pressure at this time, and the reaction force of the positioning spring 8 will drive the outer shaft sleeve 7 to rotate in the reverse direction, and then drive the closing door 9 to rotate counterclockwise, so that the closing door 9 fits the top side wall of the expansion groove 3 again, thus achieving the effect of automatic closing. When desulfurized gypsum is placed again, the desulfurized gypsum will press down the dust, thereby greatly reducing the leakage of dust and improving the environmental quality of the surrounding area.

[0030] In a further preferred embodiment of the present utility model, as Figures 1-4 shown, the opposite sides of the two closing doors 9 are both arc-shaped, and the opposite sides of the two closing doors 9 are in contact with each other.

[0031] In this embodiment, the opposite sides of the two closing doors 9 are arranged in an arc shape, so that the opposite sides of the two closing doors 9 are in contact with each other, thereby ensuring that the closing doors 9 can avoid being stuck when opening and closing, affecting the opening and closing of the closing doors 9.

[0032] In a further preferred embodiment of the present utility model, as Figure 3 shown, the adjusting member 10 includes an adjusting portion and a limiting portion. The adjusting portion includes an adjusting groove 11. The adjusting groove 11 is opened on the side of the feeding channel 2. An adjusting rod 12 is rotatably connected in the adjusting groove 11. The end of the adjusting rod 12 passes through the corresponding fixing block 5 and is fixedly connected to the end of the positioning shaft 6.

[0033] In this embodiment, the provided adjusting portion can rotate the corresponding adjusting rod 12, so that the adjusting rod 12 drives the positioning shaft 6 to rotate. When the positioning shaft 6 rotates, it will drive the positioning spring 8 to rotate, thereby increasing or decreasing the torsional force of the positioning spring 8, so that the force required to open the closing door 9 can be adjusted, and thus the different feeding environments can be adapted, improving the scope of application. Subsequently, the limiting portion limits the adjusted adjusting rod 12, so that the adjusted positioning shaft 6 can be positioned and limited, and the stability of the adjusted positioning shaft 6.

[0034] In a further preferred embodiment of the present utility model, as Figures 3-4As shown, the limiting part includes a limiting tooth shaft 13, the limiting tooth shaft 13 is fixedly connected to one end of the adjusting rod 12 away from the positioning shaft 6, an end portion of the inner side wall of the adjusting groove 11 is fixedly connected with a tooth block 14 corresponding to the limiting tooth shaft 13, an end portion of the fixed block 5 away from the adjusting groove 11 is provided with a sliding groove 15 matched with the positioning shaft 6, and the positioning shaft 6 is inserted into the sliding groove 15 and is slidably connected with the sliding groove 15.

[0035] In this embodiment, in the limiting part, when rotating the adjusting shaft, at this time, the adjusting shaft is preferably pressed first, and the adjusting shaft will be pressed into the sliding groove 15. At the same time, the limiting tooth shaft 13 will be disengaged from the tooth block 14. Then, the adjusting shaft is rotated. After rotating to a certain angle, the adjusting shaft is pulled back. The adjusting shaft will drive the limiting tooth shaft 13 to be pulled outwards, and then the limiting tooth shaft 13 is clamped by the tooth block 14, so as to achieve the effect of limiting the adjusting rod 12.

[0036] In a further preferred embodiment of the present utility model, as Figure 4 shown, a limiting spring 16 is fixedly connected to the inner end side wall of the sliding groove 15, and an end portion of the limiting spring 16 is fixedly connected to an end portion of the positioning shaft 6.

[0037] In this embodiment, the provided limiting spring 16 will drive the positioning shaft 6 to squeeze the limiting spring 16 when pressing the adjusting shaft. The limiting spring 16 will generate a certain reaction force. After the adjusting shaft is adjusted, when it is ensured that the adjusting shaft will not flip, the pressing of the adjusting shaft is stopped. The reaction force of the limiting spring 16 will assist the adjusting shaft to be pulled back, and then drive the limiting tooth shaft 13 to be clamped on the tooth block 14, which can quickly assist the adjusting shaft to be pulled back and the limiting tooth shaft 13 to be clamped on the tooth block 14.

[0038] In a further preferred embodiment of the present utility model, as Figure 3 shown, a hexagonal groove 17 is opened at one end of the limiting tooth shaft 13 away from the positioning shaft 6.

[0039] In this embodiment, the provided hexagonal groove 17 can be used for the insertion and rotation of a hexagonal wrench, so as to facilitate the adjustment of the adjusting shaft by the staff and improve the convenience.

[0040] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A pretreatment device for industrial solid waste desulfurized gypsum, including a crushing bin (1), characterized in that, The top of the crushing bin (1) is fixedly connected with a feeding channel (2). An expansion slot (3) is formed on the inner side wall of the feeding channel (2). Closing assemblies (4) are arranged on two opposite wide-side edges of the expansion slot (3). The closing assembly (4) includes two fixing blocks (5), a positioning shaft (6), an outer shaft sleeve (7), a positioning spring (8) and a closing door (9). The two fixing blocks (5) are respectively fixedly installed at two ends of the wide-side edge of the expansion slot (3). The positioning shaft (6) is arranged between the two fixing blocks (5). The outer shaft sleeve (7) is rotatably installed between the outer peripheral sides of the two fixing blocks (5). The closing door (9) is fixedly installed on the outer peripheral side of the outer shaft sleeve (7). The closing door (9) is horizontally arranged. The top side of the closing door (9) is attached to the top side wall of the expansion slot (3). The positioning spring (8) is sleeved outside the positioning shaft (6). Two ends of the positioning spring (8) are respectively fixedly connected with the outer peripheral side of the positioning shaft (6) and the inner peripheral side of the outer shaft sleeve (7). An adjusting member (10) is also arranged on the side of the feeding channel (2).

2. The pretreatment device for industrial solid waste desulfurized gypsum according to claim 1, characterized in that, One side of the two closing doors (9) facing each other is arc-shaped, and the two sides of the two closing doors (9) facing each other are attached to each other.

3. The pretreatment device for industrial solid waste desulfurized gypsum according to claim 1, characterized in that, The adjusting member (10) includes an adjusting part and a limiting part. The adjusting part includes an adjusting slot (11). The adjusting slot (11) is formed on the side of the feeding channel (2). An adjusting rod (12) is rotatably connected in the adjusting slot (11). The end of the adjusting rod (12) passes through the corresponding fixing block (5) and is fixedly connected with the end of the positioning shaft (6).

4. The pretreatment device for industrial solid waste desulfurized gypsum according to claim 3, characterized in that, The limiting part includes a limiting tooth shaft (13). The limiting tooth shaft (13) is fixedly connected with the end of the adjusting rod (12) far away from the positioning shaft (6). A tooth block (14) corresponding to the limiting tooth shaft (13) is fixedly connected to the end of the inner side wall of the adjusting slot (11). A sliding slot (15) matched with the positioning shaft (6) is formed at the end of the fixing block (5) far away from the adjusting slot (11). The positioning shaft (6) is inserted into the sliding slot (15) and is slidably connected with the sliding slot (15).

5. The pretreatment device for industrial solid waste desulfurized gypsum according to claim 4, characterized in that, A limiting spring (16) is fixedly connected to the inner end side wall of the sliding slot (15). The end of the limiting spring (16) is fixedly connected with the end of the positioning shaft (6).

6. The pretreatment device for industrial solid waste desulfurized gypsum according to claim 5, characterized in that, A hexagonal slot (17) is formed at the end of the limiting tooth shaft (13) far away from the positioning shaft (6).

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