Dust removal system for concrete mixing plant

Abstract

The utility model discloses a dust removal system for a concrete mixing plant. The dust removal system comprises a box body, a bracket, a dust hopper, a dust gas pipe, a gas outlet pipe, an end cover, a cloth bag frame, a cloth bag and a fixing device, by arranging the fixing device, when a cloth bag is installed, the cloth bag penetrates through the gland and the fixing base, so that the cloth bag is installed in the cloth bag frame, then the connecting sleeve covers the surface of the gland, at the moment, the butt joint rod penetrates through the second butt joint groove to be in butt joint with the butt joint groove, then the gland is rotated to drive the pressing base, and the pressing base presses the surface of the baffle. The cloth bag fixing device has the advantages that the cloth bag can be conveniently fixed, the connecting sleeve is fixed to the surface of the gland after the baffle is fixed, the installation stability is improved, and meanwhile the situation that the cloth bag is disengaged due to infirm clamping and embedding is avoided.

Description

Technical Field

[0001] The utility model relates to the field of dust removal systems, in particular to a dust removal system for a concrete mixing plant. Background Art

[0002] A concrete mixing plant mainly consists of five major systems, namely a mixing main machine, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. Since the building aggregate metering reduces four intermediate links compared with the station aggregate metering and is vertical feeding metering, saving the metering time, the production efficiency is greatly improved. To avoid the dust raised during mixing or adding ash from spreading in the air, a dust removal system is equipped for the mixer, and the dust removal system can separate the dust from the air.

[0003] Existing patent: CN208115355U, which discloses a bag filter, belonging to the technical field of dust removal equipment. It includes a dust collector housing, a partition plate arranged in the dust collector housing for separating the dust collector housing, and filter bags arranged in the dust collector housing for filtering dust-containing gas. The partition plate divides the dust collector housing into an upper cavity provided with an exhaust pipe and a lower cavity provided with an inlet pipe. It also includes a telescopic jet pipe arranged above the upper cavity for cleaning the ash of the filter bags, a dust-proof cover arranged outside the ash discharge port below the lower cavity for absorbing dust, and a pull rod fixedly arranged at the lower end of the filter bag for driving the filter bag to vibrate. The upper end of the filter bag with an upward opening penetrates through the partition plate and is fixedly arranged on the partition plate. The bag filter provided by this utility model has good ash cleaning effect, low cost, and can effectively avoid secondary dust emission.

[0004] The above patent or existing dust removal systems have the following problems:

[0005] The filter bags in the existing dust removal systems are important components during the operation of the dust collector. Most of the filter bags are clamped on the bag rack by elastic expansion rings, and then the elastic expansion force of the elastic expansion rings is used to tightly fix the filter bags. The clamping method requires precise installation, and it is also necessary to check whether it is firm after installation. Therefore, it is not convenient to install the filter bags. Content of the Utility Model

[0006] Therefore, to solve the above deficiencies, the utility model provides a dust removal system for a concrete mixing plant.

[0007] To achieve the above object, the utility model adopts the following technical solutions: A dust removal system for a concrete mixing plant, comprising a box body, a bracket is arranged at the lower end of the box body, a hopper is connected to the bottom of the box body, a dust pipe is butted on the hopper, an air outlet pipe is butted at the upper end of the box body, an end cover is arranged on the top of the box body, a cloth bag rack is arranged inside the box body, cloth bags are fixed on the cloth bag rack, a fixing device is arranged on the cloth bag rack, the fixing device comprises a fixing seat, the fixing seat is arranged on the surface of the cloth bag rack, a docking groove is arranged inside the fixing seat, a pressing cover is rotatably connected to the fixing seat, a second docking groove is arranged in the pressing cover, a pressing seat is arranged on the inner wall of the pressing cover, a connecting sleeve is arranged at the upper end of the cloth bag, a docking rod is arranged inside the connecting sleeve, and a baffle is arranged at the bottom of the docking rod.

[0008] Preferably, the position of the second docking groove corresponds to that of the docking groove.

[0009] Preferably, the outer ring of the connecting sleeve is bent downward and can be fitted with the surface of the pressing cover.

[0010] Preferably, the diameter of the baffle is the same as that of the docking rod, and a positioning rod is arranged at the bottom of the baffle.

[0011] Preferably, a positioning groove is arranged at the lower end of the docking groove, and the positioning rod can be docked with the positioning groove.

[0012] Preferably, one end of the bottom of the pressing seat is chamfered, and the chamfered surface is a smooth surface.

[0013] Preferably, at least four docking rods are arranged, and the four docking rods are distributed in a cross shape inside the connecting sleeve.

[0014] Preferably, the number of the docking grooves arranged on the fixing seat and the number of the second docking grooves arranged on the pressing cover are the same as that of the docking rods.

[0015] The beneficial effects of the utility model:

[0016] By arranging the fixing device, when installing the cloth bag, the cloth bag is passed through the pressing cover and the fixing seat, so that the cloth bag is installed in the cloth bag rack. Then, the connecting sleeve will cover the surface of the pressing cover. At this time, the docking rod will pass through the second docking groove and be docked with the docking groove. Then, the pressing cover is rotated to drive the pressing seat, and the pressing seat will press on the surface of the baffle and push the baffle downward for fixing. After the baffle is fixed, the connecting sleeve is fixed on the surface of the pressing cover, so as to realize convenient fixing of the cloth bag, improve the installation stability, and at the same time, there will be no beneficial effect of bag detachment due to insecure clamping. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2 It is a front view sectional structure schematic diagram of the utility model;

[0019] Figure 3 It is a front view sectional structure schematic diagram of the fixing device of the utility model;

[0020] Figure 4 It is a partial enlarged view of area A of the utility model;

[0021] Figure 5 It is a structure schematic diagram of the connecting sleeve of the utility model;

[0022] Figure 6 It is a structure schematic diagram of the gland of the utility model.

[0023] Among them: box body - 1, bracket - 2, ash hopper - 3, dust pipe - 4, air outlet pipe - 5, end cover - 6, cloth bag rack - 7, cloth bag - 8, fixing device - 9, fixing seat - 91, docking groove - 92, gland - 93, second docking groove - 94, pressing seat - 95, connecting sleeve - 96, docking rod - 97, baffle - 98, positioning rod - 981, positioning groove - 901. Specific embodiments

[0024] In order to further explain the technical solution of the utility model, the following will be elaborated in detail through specific embodiments.

[0025] Please refer to Figure 1 and Figure 2 , the utility model provides a dust removal system for a concrete mixing plant, including a box body 1, a bracket 2 for support is welded at the lower end of the box body 1, an ash hopper 3 for discharging ash after separating dust is fixed at the bottom of the box body 1 by bolts, a dust pipe 4 is welded at the right end of the ash hopper 3, the dust pipe 4 will extract the dust generated by the concrete mixing plant, an air outlet pipe 5 is butt - connected to the upper left side of the box body 1 by bolts, the air outlet pipe 5 is connected to an induced draft fan, when the induced draft fan is turned on, it will extract the air in the box body 1, making its internal part in a negative pressure state, so as to realize the extraction of external air by the dust pipe 4, an end cover 6 is fixed at the top of the box body 1 by bolts, a cloth bag rack 7 is fixed at the upper end inside the box body 1 by bolts, cloth bags 8 are installed on the cloth bag rack 7, after the dusty air enters the box body, under the action of the induced draft fan, the dust will pass through the cloth bags, when the dusty gas passes through the porous fiber layer of the cloth bags, the dust particles are blocked and adsorbed on the outer surface of the filter bag through the sieve effect, interception effect, collision effect, diffusion effect and electrostatic effect, while the clean gas passes through the filter cloth and then is discharged through the air outlet pipe 5, and a fixing device 9 is arranged on the cloth bag rack 7.

[0026] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the present utility model provides a dust removal system for a concrete mixing plant. The fixing device 9 includes a fixing base 91, which is fixed to the surface of the cloth bag rack 7 by bolts, and the fixing base 91 corresponds to the cloth bag holes of the cloth bag rack 7. When the cloth bag 8 is installed on the cloth bag rack 7, it will pass through the fixing base 91. A docking groove 92 is provided inside the fixing base 91. The pressing cover 93 is rotatably connected to the fixing base 91. A second docking groove 94 corresponding to the position of the docking groove 92 is provided in the pressing cover 93. A pressing seat 95 is integrally formed on the inner wall of the pressing cover 93, and the position of the pressing seat 95 corresponds to the second docking groove 94. A connecting sleeve 96 is fixed to the upper end of the cloth bag 8. Four docking rods 97 are integrally formed on the inner side of the connecting sleeve 96, and the four docking rods 97 are distributed in a cross shape on the inner side of the connecting sleeve 96. The docking rods 97 can pass through the second docking groove 94 to be docked with the docking groove 92. The number of the second docking groove 94 and the docking groove 92 is the same. A baffle 98 is provided at the bottom of the docking rod 97. The outer ring of the connecting sleeve 96 is bent downward, which can make the docking rod 97 fit with the surface of the pressing cover 93 after being fixed, achieving the effect of dust prevention and protection for the docking groove 92. One end of the bottom of the pressing seat 95 is chamfered, and the chamfered surface is a smooth surface. The pressing seat 95 can push down the baffle 98, so that the baffle 98 moves downward to make the connecting sleeve 96 more firmly fixed and not prone to loosening. At the same time, when the pressing seat 95 presses on the surface of the baffle 98, under the action of friction, it plays a role in limiting the pressing seat 95 and preventing the pressing cover 93 from rotating automatically. The diameter of the baffle 98 is the same as that of the docking rod 97, avoiding the influence of the baffle 98 on the installation of the docking rod 97 after docking. And a positioning rod 981 is provided at the bottom of the baffle 98, and the positioning rod 981 can be docked with the positioning groove 901 provided at the lower end of the docking groove 92 to improve the convenience of installation;

[0027] When installing the cloth bag 8, pass the cloth bag 8 through the pressing cover 93 and the fixing base 91, so that the cloth bag 8 is installed in the cloth bag rack 7. At this time, the connecting sleeve 96 will cover the surface of the pressing cover 93, and the docking rod 97 will pass through the second docking groove 94 to be docked with the docking groove 92. Then rotate the pressing cover 93 to drive the pressing seat 95 to rotate. When the pressing seat 95 rotates, it will slide along the surface of the baffle 98 and push down the baffle 98. Since the pressing seat 95 pushes down the baffle 98, the baffle 98 will fit with the bottom end surface of the pressing seat 95, and under the action of friction, the pressing cover 93 will not rotate easily, so as to realize the limitation of the pressing cover 93. After the baffle 98 is fixed, the connecting sleeve 96 is fixed on the surface of the pressing cover 93, so as to realize the convenient fixing of the cloth bag 8, improve the installation stability, and at the same time, there will be no beneficial effect of bag detachment due to insecure clamping.

[0028] The above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust removal system for a concrete mixing plant, comprising a box (1), a bracket (2) being arranged at the lower end of the box (1), an ash hopper (3) being connected to the bottom of the box (1), a dust air pipe (4) being butt-jointed to the ash hopper (3), an air outlet pipe (5) being butt-jointed to the upper end of the box (1), an end cover (6) being arranged at the top of the box (1), a bag rack (7) being arranged inside the box (1), and a bag (8) being fixed to the bag rack (7); Features: The cloth bag frame (7) further comprises a fixing device (9), wherein the fixing device (9) is arranged on the cloth bag frame (7), wherein the fixing device (9) comprises a fixing seat (91), wherein the fixing seat (91) is arranged on the surface of the cloth bag frame (7), wherein a docking groove (92) is arranged inside the fixing seat (91), wherein a pressure cover (93) is rotatably connected to the fixing seat (91), wherein a second docking groove (94) is arranged in the pressure cover (93), wherein a pressure seat (95) is arranged on the inner wall of the pressure cover (93), wherein a connecting sleeve (96) is arranged at the upper end of the cloth bag (8), wherein a docking rod (97) is arranged inside the connecting sleeve (96), and wherein a baffle (98) is arranged at the bottom of the docking rod (97).

2. A dust removal system for a concrete mixing plant according to claim 1, characterized in that: The second docking groove (94) corresponds to the position of the docking groove (92).

3. A dust removal system for a concrete mixing plant according to claim 1, characterized in that: The outer ring of the connecting sleeve (96) is bent downward and can fit the surface of the gland (93).

4. A dust removal system for a concrete mixing plant according to claim 2, characterized in that: The diameter of the baffle plate (98) is the same as the diameter of the docking rod (97), and a positioning rod (981) is provided at the bottom of the baffle plate (98).

5. A dust removal system for a concrete mixing plant according to claim 4, characterized in that: A positioning groove (901) is provided at the lower end of the docking groove (92), and the positioning rod (981) can be connected to the positioning groove (901).

6. The dust removal system for a concrete mixing plant according to claim 1, characterized in that: One end of the bottom of the pressure seat (95) is chamfered, and the chamfered surface is smooth.

7. A dust removal system for a concrete mixing plant according to claim 5, characterized in that: At least four docking rods (97) are provided, and the four docking rods (97) are distributed in a cross shape on the inner side of the connecting sleeve (96).

8. A dust removal system for a concrete mixing plant according to claim 7, characterized in that: The number of the docking grooves (92) provided on the fixing seat (91) and the second docking grooves (94) provided on the pressure cover (93) is the same as that of the docking rods (97).

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