Multi-strand feeding chute for V-shaped powder concentrator

Abstract

The utility model discloses a multi-strand feeding chute for a V-shaped powder concentrator, which comprises a feeding chute shell, a fine powder discharge port, a coarse powder discharge port, a cover plate and a screening device, and is characterized in that the screening device is arranged, and primary impurity filtration is carried out on powder through a fixing mechanism; then, a rotating shaft is driven by a driving motor to enable a rotating roller to do circumferential rotation along the inner side of the screening barrel, and the powder is quantitatively screened and discharged through eight sets of feeding grooves in the outer side of the rotating roller; the first powder screening plate and the second powder screening plate are matched to achieve the effects of size screening and secondary impurity filtering on the powder, the fixing mechanism is arranged, and sliding blocks on the left side and the right side of the filtering plate have the characteristics that the filtering plate is subjected to auxiliary positioning, and the filtering plate is horizontally installed on the inner side of the upper end of the feeding chute shell; and the stability of the filter plate on the inner side of the upper end of the feeding chute shell is improved through the positioning block.

Description

Technical Field

[0001] The utility model relates to the technical field of powder classifiers, in particular to a multi-strand feeding chute for a V-shaped powder classifier. Background Art

[0002] Powder classifier is a device that can distinguish granular materials by size. It is widely used in building materials, food and other industries. Powder classifier uses a turntable to disperse materials. The fan blades inside the powder classifier box classify materials through the airflow generated by the rotation, and the gravity sedimentation of materials in the machine collects fine powder. Powder classifier is widely used in cement closed-circuit grinding systems in cement plants. Due to inadequate post-dust treatment technology, various problems will arise. The working environment of employees is poor, the dust concentration is high, and employees are prone to "pneumoconiosis" occupational diseases; there are great fire and safety hazards, and dust pollution may lead to dust explosions, leading to safety accidents.

[0003] For example, publication number CN201921790882.0 discloses "A V-shaped powder classifier capable of collecting dust", which breaks up the caked material coming out of the roller press, separates the qualified fine powder in the broken material, and discharges it from the fine powder and coarse powder outlets respectively, which is conducive to the smooth operation of the roller press and improves the system output.

[0004] The above method reduces dust pollution and dust explosion by breaking up the caked materials and then separating the coarse and fine powders. However, a large amount of coarse and fine powder mixture will be formed after the caked materials are broken up, and the coarse and fine powder mixture contains a large amount of impurities. If the coarse and fine powder mixture is not filtered, the coarse and fine powder mixture will still carry a large amount of impurities and be discharged after the separation, causing certain safety hazards and harm to the human body. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a multi-strand feed chute for a V-shaped powder classifier, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a V-shaped multi-strand feed chute for a powder selector, comprising a feed chute shell, a fine powder discharge port, a coarse powder discharge port, a cover plate and a screening device, the bottom left and right sides of the feed chute shell are respectively provided with a fine powder discharge port and a coarse powder discharge port, the top of the feed chute shell is provided with a cover plate, the screening device is installed on the inner side of the middle part of the material chute shell, the screening device comprises a fixing mechanism, a driving motor, a rotating shaft, a rotating drum, a screening drum, a first powder screening plate and a second powder screening plate, the output end of the driving motor is transmission-connected to the front end of the rotating shaft through a coupling, the middle part of the rotating shaft is fixed to the inner side of the middle part of the rotating drum, the rotating drum is arranged on the inner side of the screening drum, the lower sides of the left and right ends of the screening drum are respectively provided with a first powder screening plate and a second powder screening plate, the fixing mechanism and the screening drum are respectively installed on the inner side of the middle part of the material chute shell, and the driving motor is installed on the middle part of the front end of the chute shell.

[0009] Preferably, the fixing mechanism comprises a filter plate, a slider and a positioning block, the right end of the filter plate is provided with a slider, the rear end of the fixing mechanism is provided with a positioning block, and the filter plate is installed on the inner side of the middle part of the material chute shell.

[0010] Preferably, the driving motor, rotating shaft, rotating drum and screening drum are respectively arranged horizontally along the inner side of the middle part of the outer shell of the material chute.

[0011] Preferably, eight groups of feeding troughs are distributed on the outer side of the rotating drum, and the rotating drum rotates in a horizontal circle along the inner side of the middle part of the screening drum, and the powder is quantitatively screened and discharged through the eight groups of feeding troughs.

[0012] Preferably, the first powder screening plate and the second powder screening plate are arranged opposite to each other along the left and right sides of the bottom of the screening cylinder, and the surfaces of the first powder screening plate and the second powder screening plate are provided with multiple groups of screening holes, and the drying holes on the surface of the first powder screening plate are smaller than the drying holes on the surface of the second powder screening plate, thereby achieving the effect of powder size screening and secondary filtration through the first powder screening plate and the second powder screening plate.

[0013] Preferably, a rectangular notch is provided on the inner side of the upper end of the material chute shell, and the filter plate, slider and positioning block are arranged to fit with the rectangular notch on the inner side of the upper end of the material chute shell, so as to facilitate the installation of the filter plate on the inner side of the upper end of the material chute shell.

[0014] Preferably, the sliders are symmetrically arranged along the left and right ends of the filter plate, and the filter plate is slidably matched with the inner side of the upper end of the material chute shell through two groups of sliders, and the two groups of sliders have an auxiliary positioning effect on the filter plate.

[0015] Preferably, the rotating drum is made of stainless steel and has corrosion resistance.

[0016] (III) Beneficial effects

[0017] The utility model provides a multi-strand feed chute for a V-type powder selection machine. It has the following beneficial effects: by setting up a screening device, the powder is initially filtered for impurities through a fixing mechanism; then the rotating drum is driven by a driving motor to make a circular rotation along the inner side of the screening drum, and the powder is quantitatively screened and discharged through eight groups of feed troughs on the outer side of the rotating drum; and the first powder screening plate and the second powder screening plate are used to complete the size screening of the powder and the effect of secondary impurity filtering.

[0018] The utility model provides a multi-strand feed chute for a V-shaped powder selector. It has the following beneficial effects: by setting a fixing mechanism, the sliders on the left and right sides of the filter plate are used to assist in positioning the filter plate and horizontally install it to the inner side of the upper end of the feed chute shell, and the positioning block is used to increase the stability of the filter plate on the inner side of the upper end of the feed chute shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the planar structure of the screening device of the utility model;

[0022] Figure 4 It is a right view structural schematic diagram of the screening device of the utility model;

[0023] Figure 5 This is a schematic diagram of the top view of the fixing mechanism of the utility model;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the fixing mechanism of the utility model.

[0025] In the figure: feed chute shell-1, fine powder discharge port-2, coarse powder discharge port-3, cover plate-4, screening device-5, fixing mechanism-51, driving motor-52, rotating shaft-53, rotating drum-54, screening cylinder-55, first powder screening plate-56, second powder screening plate-57, filter plate-511, slider-512, positioning block-513. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 and 2 The utility model provides a technical solution for a multi-strand feed chute for a V-type powder selector: a multi-strand feed chute for a V-type powder selector, comprising a feed chute shell 1, a fine powder discharge port 2, a coarse powder discharge port 3, a cover plate 4 and a screening device 5, the fine powder discharge port 2 and the coarse powder discharge port 3 are respectively arranged on the left and right sides of the bottom of the feed chute shell 1, the cover plate 4 is installed on the top of the feed chute shell 1, and the screening device 5 is installed on the inner side of the middle part of the feed chute shell 1.

[0028] See also Figure 3 and 4 The utility model provides a technical solution for a multi-strand feed chute for a V-type powder classifier: a multi-strand feed chute for a V-type powder classifier, the screening device 5 includes a fixing mechanism 51, a driving motor 52, a rotating shaft 53, a rotating drum 54, a screening drum 55, a first powder screening plate 56 and a second powder screening plate 57, the output end of the driving motor 52 is connected to the front end of the rotating shaft 53 through a coupling, the middle part of the rotating shaft 53 is fixed to the inner side of the middle part of the rotating drum 54, the rotating drum 54 is arranged on the inner side of the screening drum 55, and the first powder screening plate 56 and the second powder screening plate 57 are respectively arranged on the lower sides of the left and right ends of the screening drum 55, the fixing mechanism 51 and the screening drum 55 are respectively installed on the inner side of the middle part of the material chute shell 1, the driving motor 52 is installed in the middle part of the front end of the chute shell 1, the driving motor 52, the rotating shaft 53, The rotating drum 54 and the screening drum 55 are respectively arranged horizontally along the inner side of the middle part of the material chute shell 1, and eight groups of feeding troughs are distributed on the outer side of the rotating drum 54. The rotating drum 54 rotates horizontally in a circle along the inner side of the middle part of the screening drum 55, and the eight groups of feeding troughs are used to quantitatively screen and discharge the powder. The first powder screening plate 56 and the second powder screening plate 57 are arranged opposite to each other on the left and right sides of the bottom of the screening drum 55. The surfaces of the first powder screening plate 56 and the second powder screening plate 57 are provided with multiple groups of screening holes. The drying holes on the surface of the first powder screening plate 56 are smaller than the drying holes on the surface of the second powder screening plate 57, so that the first powder screening plate 56 and the second powder screening plate 57 can achieve the effect of powder size screening and secondary filtration. The rotating drum 54 is made of stainless steel and has corrosion-resistant properties.

[0029] See also Figure 5 and 6The utility model provides a technical solution for a multi-strand feeding chute for a V-type powder selecting machine: a multi-strand feeding chute for a V-type powder selecting machine, the fixing mechanism 51 comprises a filter plate 511, a slider 512 and a positioning block 513. The right end of the filter plate 511 is provided with a slider 512, and the rear end of the fixing mechanism 51 is provided with a positioning block 513. The filter plate 511 is installed on the inner side of the middle part of the material chute shell 1, and a rectangular notch is provided on the inner side of the upper end of the material chute shell 1. The filter plate 511, the slider 512 and the positioning block 513 are matched with the rectangular notch on the inner side of the upper end of the material chute shell 1, so that the filter plate 511 is matched with the inner side of the upper end of the material chute shell 1, and the sliders 512 are symmetrically arranged along the left and right ends of the filter plate 511, and the filter plate 511 is slidably matched with the inner side of the upper end of the material chute shell 1 through two groups of sliders 512, and the two groups of sliders 512 play an auxiliary positioning effect on the filter plate 511.

[0030] When in use, first, the filter plate 511 and the sliders 512 on the left and right sides thereof are horizontally inserted into the notch on the inner side of the upper end of the feed chute shell 1. The filter plate 511 is guided by the sliders 512 on both sides and the inner side of the upper end of the feed chute shell 1, and the positioning block 513 is used to increase the stability of the filter plate 511 on the inner side of the upper end of the feed chute shell 1.

[0031] Then, the coarse and fine powder mixture is fed into the feed port above the feed chute shell 1, and the filter plate 511 performs preliminary impurity filtration on the coarse and fine powder mixture; then, the driving motor 52 drives the rotating shaft 53 to make the rotating drum 54 rotate in a circle along the inner side of the screening drum 55, and after the preliminary filtered coarse and fine powder mixture passes through the filter plate 511, it passes through the inclined inclined plates respectively arranged on the left and right sides of the upper end of the screening drum 55, so as to facilitate the coarse and fine powder mixture to be guided and guided to fall into the notch in the middle of the upper end of the screening drum 55, and then fall into the feeding trough inside the rotating drum 54, and the eight groups of feeding troughs outside the rotating drum 54 play the role of quantitative screening and feeding of powder; and cooperate with the first powder screening plate 56 and the second powder screening plate 57 to complete the size screening and secondary impurity filtration of powder;

[0032] Finally, the coarse and fine powders after secondary filtration and screening are discharged through the fine powder discharge port 2 and the coarse powder discharge port 3 respectively and collected for treatment.

[0033] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0034] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-strand feed chute for a V-shaped powder selector, comprising a feed chute shell (1), a fine powder discharge port (2), a coarse powder discharge port (3) and a cover plate (4), wherein the fine powder discharge port (2) and the coarse powder discharge port (3) are respectively arranged on the left and right sides of the bottom of the feed chute shell (1), and the cover plate (4) is installed on the top of the feed chute shell (1); Features: The invention also comprises a screening device (5), wherein the screening device (5) is installed on the inner side of the middle part of the material chute shell (1), and the screening device (5) comprises a fixing mechanism (51), a driving motor (52), a rotating shaft (53), a rotating drum (54), a screening drum (55), a first powder screening plate (56) and a second powder screening plate (57). The output end of the driving motor (52) is connected to the front end of the rotating shaft (53) through a coupling, the middle part of the rotating shaft (53) is fixed to the inner side of the middle part of the rotating drum (54), the rotating drum (54) is arranged on the inner side of the screening drum (55), and the first powder screening plate (56) and the second powder screening plate (57) are respectively arranged on the lower sides of the left and right ends of the screening drum (55), the fixing mechanism (51) and the screening drum (55) are respectively installed on the inner side of the middle part of the material chute shell (1), and the driving motor (52) is installed in the middle part of the front end of the chute shell (1).

2. A multi-strand feed chute for a V-type powder selector according to claim 1, characterized in that: The fixing mechanism (51) comprises a filter plate (511), a slider (512) and a positioning block (513); the right end of the filter plate (511) is provided with a slider (512); the rear end of the fixing mechanism (51) is provided with a positioning block (513); and the filter plate (511) is installed on the inner side of the middle part of the material chute shell (1).

3. A multi-strand feed chute for a V-type powder selector according to claim 1, characterized in that: The driving motor (52), the rotating shaft (53), the rotating drum (54) and the screening drum (55) are respectively arranged horizontally along the inner side of the middle part of the material chute shell (1).

4. The multi-strand feed chute for a V-type powder selector according to claim 1, characterized in that: Eight groups of material feeding troughs are distributed on the outer side of the rotating drum (54), and the rotating drum (54) performs horizontal circular rotation along the inner side of the middle part of the screening drum (55).

5. The multi-strand feed chute for a V-type powder selector according to claim 1, characterized in that: The first powder screening plate (56) and the second powder screening plate (57) are arranged opposite to each other along the left and right sides of the bottom of the screening cylinder (55); a plurality of groups of screening holes are arranged on the surfaces of the first powder screening plate (56) and the second powder screening plate (57); the drying holes on the surface of the first powder screening plate (56) are smaller than the drying holes on the surface of the second powder screening plate (57).

6. The multi-strand feed chute for a V-type powder selector according to claim 1, characterized in that: A rectangular notch is provided on the inner side of the upper end of the material chute shell (1), and the filter plate (511), the slider (512) and the positioning block (513) are arranged to fit in the rectangular notch on the inner side of the upper end of the material chute shell (1).

7. The multi-strand feed chute for a V-type powder selector according to claim 2, characterized in that: The sliding blocks (512) are symmetrically arranged along the left and right ends of the filter plate (511), and the filter plate (511) is slidably matched with the inner side of the upper end of the material chute shell (1) through the two sets of sliding blocks (512).

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