Cement production batching and mixing device

Abstract

The utility model relates to cement production equipment technical field discloses a cement production batching mixing device, including mixing box, support frame and hopper, the inside wall rotation of mixing box is connected with stirring shaft, and the outer wall fixed connection of stirring shaft has stirring vane and broken tooth, motor output shaft fixedly connected with gear no.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, and in particular to a cement production batching and mixing device. Background Technology

[0002] In the cement production batching process, mixing equipment is needed to mix various raw materials. Existing cement batching and mixing equipment mainly uses a motor to drive one or more mixing shafts to rotate, thereby driving the mixing blades to mix the materials in the tank. However, cement raw materials will become damp during transportation and storage, forming hard lumps. Existing mixing blades cannot effectively break up the hard lumps, resulting in the lumps not being fully dispersed inside the mixing tank, causing uneven mixing of raw materials and reducing the quality of cement production. In addition, a large amount of dust generated during the mixing process will directly diffuse into the gear transmission area. Dust adhering to the gear surface will aggravate structural wear and may even cause the transmission components to jam and be damaged.

[0003] In addition, existing cement batching and mixing equipment often uses a drive component to move a sliding plate directly in the chute to control the opening and closing of the discharge port. There is a large sliding friction resistance between the bottom surface of the sliding plate and the surface of the chute, which causes the sliding plate to move slowly and increases the load on the drive component. Long-term use will cause the sliding plate to get stuck inside the chute and unable to move, which seriously affects the discharge efficiency of cement batching operations and the stability of equipment operation.

[0004] Therefore, this utility model proposes a cement production batching and mixing device to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the cement production batching and mixing device, such as raw material agglomeration leading to uneven mixing, mixing dust intrusion into the transmission system causing equipment failure, and high frictional resistance of the discharge slide plate leading to difficulty in opening and closing or jamming, this utility model aims to provide a cement production batching and mixing device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a cement production batching and mixing device, including: a mixing tank, a support frame fixedly connected to the outer wall of the mixing tank, and a hopper connected to the top of the mixing tank; a mixing mechanism disposed inside the mixing tank, a motor fixedly installed on the outer wall of the mixing tank, a baffle fixedly connected to the inner wall of the mixing tank, and a sealing mechanism disposed at the bottom of the mixing tank.

[0007] The stirring mechanism includes a stirring shaft rotatably connected to the inner wall of the mixing tank. Stirring blades and crushing teeth are fixedly connected to the outer wall of the stirring shaft. A motor output shaft passes through the outer wall of the mixing tank and is fixedly connected to a gear 1. Gear 2 is meshed on both sides of gear 1. Gear 2 is fixedly connected to the end of the stirring shaft. A baffle is located outside gear 1 and gear 2. The baffle has a limiting hole for the stirring shaft to pass through. The sealing mechanism includes a sliding plate slidably connected to the discharge port at the bottom of the mixing tank. An electric telescopic rod is fixedly connected to the end of the sliding plate. The electric telescopic rod is fixedly connected to the bottom of the mixing tank. A groove is opened at the bottom of the mixing tank. A slider is fixedly connected to the top of the sliding plate. A roller is rotatably connected to the slider. The roller is rotatably connected to the inside of the groove.

[0008] Furthermore, the motor is connected to the stirring shaft via gear one and gear two. The stirring shaft extends into the mixing tank through the limiting hole of the baffle. The baffle separates the transmission components from the mixing area. The electric telescopic rod is fixedly connected to the slide plate to drive the slide plate to move along the chute. The slide plate forms a rolling friction engagement with the chute through the slider and roller.

[0009] Preferably, there are multiple stirring shafts, the crushing teeth are evenly arranged along the axial direction of the stirring shaft, the stirring blades are arranged between adjacent crushing teeth, and the stirring blades are spirally distributed along the surface of the stirring shaft.

[0010] Preferably, the outer periphery of the baffle is fully welded to the inner wall of the mixing tank, and the baffle divides the inner cavity of the mixing tank into a transmission cavity and a mixing cavity. Gear 1 and Gear 2 are located inside the transmission cavity, and the mixing blade and crushing teeth are located inside the mixing cavity.

[0011] Preferably, the diameter of the limiting hole is larger than the diameter of the stirring shaft, the stirring shaft and the limiting hole are fitted with a clearance, and the rotation axis of the stirring shaft coincides with the central axis of the limiting hole.

[0012] Preferably, the electric telescopic rod is fixed to the outer wall of the bottom of the mixing tank by an L-shaped mounting base. The telescopic direction of the electric telescopic rod is parallel to the sliding direction of the slide plate, and the width of the slide plate is greater than the width of the discharge port at the bottom of the mixing tank.

[0013] Preferably, the chute is opened along the length of the bottom of the mixing tank, and there are two chutes. The two chutes are located on both sides of the discharge port at the bottom of the mixing tank, and the cross-sectional shape of the chute is rectangular.

[0014] Preferably, the number of sliders is the same as the number of grooves, the upper end face of the slider is fixedly connected to the lower end face of the slide plate by bolts, and the lower end of the slider extends into the groove.

[0015] Preferably, the roller is mounted on the front end of the slider via a rotating shaft, the outer circumferential surface of the roller abuts against the bottom of the groove, and a gap is left between the side wall of the slider and the inner side wall of the groove.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problems of cement raw material agglomeration affecting mixing quality and mixing dust intrusion into the transmission system causing equipment failure in the prior art by setting crushing teeth on the surface of the mixing shaft and setting baffles in the mixing box to isolate the transmission components from the mixing area. It achieves the effect of effectively crushing agglomerated raw materials to ensure mixing uniformity, while protecting the gear transmission components from dust pollution and extending the service life of the equipment.

[0018] 2. This utility model solves the problems of high opening and closing resistance of the discharge port, cumbersome and time-consuming manual operation in the prior art by setting rollers that cooperate with the chute at the bottom of the discharge slide plate and using an electric telescopic rod as the driving source. It achieves the effect of using rolling friction to replace sliding friction to significantly reduce movement resistance, realize the fast, labor-saving and automatic opening and closing of the discharge port, thereby improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a front perspective view of a cement production batching and mixing device proposed in this utility model;

[0020] Figure 2 This is a cross-sectional view of the mixing tank of a cement production batching and mixing device proposed in this utility model;

[0021] Figure 3 This is a partial structural exploded view of the mixing mechanism of a cement production batching and mixing device proposed in this utility model;

[0022] Figure 4 This is a structural exploded view of the sealing mechanism of a cement production batching and mixing device proposed in this utility model;

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Mixing tank; 2. Mixing mechanism; 201. Mixing shaft; 202. Limiting hole; 203. Gear 1; 204. Gear 2; 205. Mixing blade; 206. Crushing tooth; 207. Baffle; 3. Sealing mechanism; 301. Electric telescopic rod; 302. Slide plate; 303. Slide groove; 304. Sliding block; 305. Roller; 4. Hopper; 5. Support frame; 6. Motor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example:

[0028] Please refer to Figures 1 to 5 This utility model provides a cement production batching and mixing device, which aims to solve the problems in the prior art such as raw material clumping affecting the mixing effect, mixing dust contaminating the transmission components and causing malfunctions, and large resistance to opening and closing the discharge port and cumbersome operation.

[0029] Please refer to Figure 1 and Figure 2 The cement production batching and mixing device includes a mixing box 1, a support frame 5 fixedly connected to the outer walls of the mixing box 1, and a hopper 4 connected to the top of the mixing box 1. The support frame 5 is used to support the mixing box 1 off the ground to facilitate bottom discharge operation. The hopper 4 is used to introduce various raw materials required for cement production into the mixing box 1. The mixing box 1 is equipped with a mixing mechanism 2.

[0030] The stirring mechanism 2 includes a stirring shaft 201 rotatably connected to the inner walls of the left and right sides of the stirring box 1. Stirring blades 205 and crushing teeth 206 are fixedly connected to the surface of the stirring shaft 201. A motor 6 is fixedly installed on one outer wall of the stirring box 1. The output end of the motor 6 passes through the outer wall of the stirring box 1 and is fixedly connected to a gear 203. Gears 204 are meshed on both sides of the gear 203. The inner wall of the gear 204 is fixedly connected to the end of the stirring shaft 201. The motor 6 drives the gear 203 to rotate, thereby driving the gears 204 on both sides and the stirring shaft 201 to rotate synchronously. The crushing teeth 206 break up the clumps of raw materials and mix them with the stirring blades 205.

[0031] A baffle 207 is fixedly connected to the inner wall of the mixing tank 1, located on one side of gear 1 203 and gear 2 204. A limiting hole 202 is provided on the surface of the baffle 207 for the stirring shaft 201 to pass through. The baffle 207 is used to physically isolate the gear transmission area from the raw material mixing area. A sealing mechanism 3 is provided at the bottom of the mixing tank 1. The sealing mechanism 3 includes a slide plate 302 slidably connected to the discharge port at the bottom of the mixing tank 1. An electric telescopic rod 301 is fixedly connected to the rear end surface of the slide plate 302. The fixed end of the electric telescopic rod 301 is connected to the bottom surface of the mixing tank 1. The electric telescopic rod 301 is used to drive the slide plate 302 to perform reciprocating linear motion to realize the opening and closing of the discharge port. A groove 303 is provided on the bottom surface of the mixing tank 1. A slider 304 is fixedly connected to the top of the slide plate 302. A roller 305 is rotatably connected to the front end of the slider 304. The roller 305 is rolled and connected to the inner wall of the groove 303. The rolling cooperation of the roller 305 in the groove 303 reduces the frictional resistance when the slide plate 302 moves.

[0032] Please refer to Figure 2 and Figure 3 The stirring mechanism 2 includes two stirring shafts 201 rotatably connected to the inner walls of the left and right sides of the stirring box 1. The two stirring shafts 201 are symmetrically and parallelly distributed about the central axis of the stirring box 1. Multiple crushing teeth 206 are fixedly connected to the outer circumferential surface of the stirring shafts 201 and are evenly arranged along the axial direction. Stirring blades 205 located between adjacent crushing teeth 206 are also fixedly connected to the surface of the stirring shafts 201. The stirring blades 205 are spirally distributed along the circumference of the stirring shafts 201. The crushing teeth 206 are used to impact and crush the agglomerated raw materials entering the stirring box 1, and the stirring blades 205 are used to tumble and mix the crushed raw materials.

[0033] A motor 6 is fixedly installed on the front outer wall of the mixing tank 1 as a drive source. The output shaft of the motor 6 passes horizontally through the front wall of the mixing tank 1 and is fixedly connected to a gear 203. Gears 204 are meshed on the outer circumferential surfaces of the gears 203 on the left and right sides respectively. The two gears 204 are fixedly sleeved on the front ends of the two mixing shafts 201 respectively. A baffle 207 is fixedly connected to the inner wall of the mixing tank 1, located behind the gears 203 and 204. The baffle 207 divides the inner cavity of the mixing tank 1 into a front transmission cavity and a rear mixing cavity. A limiting hole 202 is opened on the surface of the baffle 207 for the mixing shaft 201 to pass through. The mixing shaft 201 extends into the mixing cavity through the limiting hole 202. The baffle 207 prevents the dust generated by the mixing from entering the transmission cavity. The motor 6 drives the gear 203 to rotate and drives the gears 204 on both sides to rotate synchronously, thereby driving the two mixing shafts 201 to rotate synchronously relative to each other, completing the crushing and mixing of raw materials.

[0034] In a preferred embodiment, to improve the uniformity of raw material mixing and crushing efficiency, the number of stirring shafts 201 is set to two. The two stirring shafts 201 are symmetrically distributed about the axis of gear 1 203. The crushing teeth 206 are evenly arranged along the axial direction of the stirring shafts 201. The stirring blades 205 are arranged between adjacent crushing teeth 206 and are spirally distributed along the circumference of the stirring shafts 201. The outer periphery of the baffle 207 is fully welded to the inner wall of the mixing box 1. The baffle 207 divides the inner cavity of the mixing box 1 into a transmission cavity and a stirring cavity. Gear 1 203 and gear 2 204 are located inside the transmission cavity, and the stirring blades 205 and crushing teeth 206 are located inside the stirring cavity.

[0035] In another preferred embodiment, in order to prevent interference friction between the stirring shaft 201 and the baffle 207 when the stirring shaft 201 rotates, the diameter of the limiting hole 202 is larger than the shaft diameter of the stirring shaft 201, and a clearance fit is formed between the stirring shaft 201 and the limiting hole 202, and the rotation axis of the stirring shaft 201 coincides with the central axis of the limiting hole 202.

[0036] As another preferred embodiment, please refer to Figure 1 , Figure 4 and Figure 5 To ensure the stability of the discharge port opening and closing mechanism, the electric telescopic rod 301 is fixed to the bottom outer wall of the mixing tank 1 by an L-shaped mounting base. The telescopic direction of the electric telescopic rod 301 is parallel to the sliding direction of the slide plate 302. The width of the slide plate 302 is greater than the width of the bottom discharge port of the mixing tank 1. The chute 303 is opened along the length of the bottom of the mixing tank 1. There are two chute 303s. The two chute 303s are located on both sides of the bottom discharge port of the mixing tank 1, and the cross-sectional shape of the chute 303 is rectangular. The number of sliders 304 is the same as the number of chute 303s. The upper end face of the slider 304 is fixedly connected to the lower end face of the slide plate 302 by bolts. The lower end of the slider 304 extends into the interior of the chute 303.

[0037] As another preferred embodiment, to further reduce the frictional resistance when the slide plate 302 moves, please refer to... Figure 5 The roller 305 is mounted on the front end of the slider 304 via a rotating shaft. The outer circumferential surface of the roller 305 abuts against the bottom of the groove 303. A gap is left between the side wall of the slider 304 and the inner side wall of the groove 303.

[0038] Working principle: During cement production batching and mixing, various raw materials enter the mixing chamber 1 through the feeding hopper 4. At this time, the motor 6 is started, and the output end of the motor 6 rotates and drives the gear 1 203 to rotate. The gear 1 203 meshes and drives the gear 2 204 on the left and right sides to rotate synchronously in opposite directions. The gear 2 204 drives the corresponding mixing shaft 201 to rotate inside the mixing chamber 1. The crushing teeth 206 fixed on the surface of the mixing shaft 201 impact and crush the lumpy raw materials that enter the mixing chamber 1. At the same time, the spirally distributed mixing blades 205 tumble and stir the crushed raw materials to achieve uniform mixing. During this process, the baffle 207 physically isolates the mixing chamber from the transmission chamber to prevent the dust generated by the mixing from entering the transmission chamber through the limiting hole 202 and affecting the normal operation of the gear 1 203 and the gear 2 204.

[0039] When the mixing is complete and discharge is required, the electric telescopic rod 301 is retracted. The electric telescopic rod 301 drives the slide plate 302 to move backward along the slide groove 303. The slide plate 302 drives the slider 304 fixedly connected to the top to move synchronously. The roller 305 connected to the front end of the slider 304 rolls on the inner wall of the slide groove 303. The rolling friction between the roller 305 and the slide groove 303 is used to replace the sliding friction, thereby reducing the resistance when the slide plate 302 moves. After the slide plate 302 moves away, the discharge port at the bottom of the mixing tank 1 is opened for unloading. After unloading is completed, the electric telescopic rod 301 is extended to drive the slide plate 302 to reset and close the discharge port.

Claims

1. A cement production batching and mixing device, comprising: The mixing tank (1), the support frame (5) fixedly connected to the outer wall of the mixing tank (1), and the hopper (4) connected to the top of the mixing tank (1). The stirring mechanism (2) is provided inside the stirring tank (1), and the stirring mechanism (2) includes a stirring shaft (201) rotatably connected to the inner wall of the stirring tank (1), and stirring blades (205) and crushing teeth (206) are fixedly connected to the outer wall of the stirring shaft (201). A motor (6) is fixedly installed on the outer wall of the mixing tank (1). The output shaft of the motor (6) passes through the outer wall of the mixing tank (1) and is fixedly connected to a gear (203). Gears (204) are meshed on both sides of the gear (203). The gears (204) are fixedly connected to the end of the stirring shaft (201). A baffle (207) located outside the gears (203) and the gears (204) is fixedly connected to the inner wall of the mixing tank (1). The baffle (207) has a limiting hole (202) for the stirring shaft (201) to pass through.

2. The cement production batching and mixing device according to claim 1, characterized in that, The bottom of the mixing tank (1) is provided with a sealing mechanism (3). The sealing mechanism (3) includes a sliding plate (302) that is slidably connected to the discharge port at the bottom of the mixing tank (1). An electric telescopic rod (301) is fixedly connected to the end of the sliding plate (302). The electric telescopic rod (301) is fixedly connected to the bottom of the mixing tank (1).

3. The cement production batching and mixing device according to claim 2, characterized in that, The bottom of the mixing tank (1) is provided with a chute (303), and the top of the slide plate (302) is fixedly connected with a slider (304). The slider (304) is rotatably connected with a roller (305), and the roller (305) is rotatably connected inside the chute (303).

4. A cement production batching and mixing device according to claim 1, characterized in that, The number of stirring shafts (201) is multiple, the crushing teeth (206) are evenly arranged along the axial direction of the stirring shafts (201), the stirring blades (205) are disposed between adjacent crushing teeth (206), and the stirring blades (205) are spirally distributed along the surface of the stirring shafts (201).

5. A cement production batching and mixing device according to claim 1, characterized in that, The outer periphery of the baffle (207) is fully welded to the inner wall of the mixing tank (1). The baffle (207) divides the inner cavity of the mixing tank (1) into a transmission cavity and a mixing cavity. The first gear (203) and the second gear (204) are located inside the transmission cavity, and the stirring blade (205) and the crushing tooth (206) are located inside the mixing cavity.

6. A cement production batching and mixing device according to claim 1, characterized in that, The diameter of the limiting hole (202) is larger than the diameter of the stirring shaft (201). The stirring shaft (201) and the limiting hole (202) are in clearance fit, and the rotation axis of the stirring shaft (201) coincides with the central axis of the limiting hole (202).

7. A cement production batching and mixing device according to claim 3, characterized in that, The electric telescopic rod (301) is fixed to the bottom outer wall of the mixing tank (1) by an L-shaped mounting seat. The telescopic direction of the electric telescopic rod (301) is parallel to the sliding direction of the sliding plate (302). The width of the sliding plate (302) is greater than the width of the bottom discharge port of the mixing tank (1).

8. A cement production batching and mixing device according to claim 3, characterized in that, The chute (303) is opened along the length direction of the bottom of the mixing tank (1). There are two chute (303), which are located on both sides of the bottom discharge port of the mixing tank (1). The cross-sectional shape of the chute (303) is rectangular.

9. A cement production batching and mixing device according to claim 7, characterized in that, The number of sliders (304) is the same as the number of grooves (303). The upper end face of the slider (304) is fixedly connected to the lower end face of the slide plate (302) by bolts. The lower end of the slider (304) extends into the groove (303).

10. A cement production batching and mixing device according to claim 8, characterized in that, The roller (305) is mounted on the front end of the slider (304) via a rotating shaft. The outer circumferential surface of the roller (305) abuts against the bottom of the groove (303). A gap is left between the side wall of the slider (304) and the inner side wall of the groove (303).

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