CN218910968U - Medium-concentration pressure screen capable of avoiding heavy impurity abrasion of screen cylinder - Google Patents

Abstract

The utility model relates to a medium-concentration pressure screen for preventing heavy impurities from wearing a screen drum, comprising a screen cylinder, the inner chamber of which is provided with an auxiliary mechanism used in conjunction with the drum screen. By setting up the auxiliary mechanism, the driving source is provided by the driving motor, and then the heavy impurities in the slurry in the screen cylinder are fully and effectively crushed by the cooperation of the reducer, the crushing frame and the turbulence blade, so as to reduce the production of heavy impurities. Protect the drum sieve from the source of heavy impurities, strengthen the overall strength of the drum sieve through the cooperation of the reinforced frame and the reinforcing plate, improve the overall compression and wear resistance of the drum sieve, and then use the arc elastic ring and With the cooperation of the protective net frame, the effective diversion and buffer treatment is carried out around the stress-bearing surface of the drum sieve, and protective measures are provided for the stress-bearing surface of the drum sieve, which effectively slows down the wear and tear of the heavy impurities on the drum sieve and prolongs the normal service life of the drum sieve , Reduce the breakage rate and maintenance rate of the drum screen.

Description

A medium-consistency pressure screen that prevents heavy impurities from wearing the screen drum

technical field

The utility model relates to the technical field of bobbin paper processing, in particular to a medium-consistency pressure sieve which prevents heavy impurities from wearing the sieve drum.

Background technique

Tube paper is mainly used in cartons, honeycomb cardboard, etc. For cartons, tube paper is an important raw material for making cartons, and when tube paper is made into cartons and honeycomb cardboard, it needs to be pretreated by water crushing , and then use a medium-concentration pressure sieve to perform primary screening on the crushed slurry.

However, during the primary screening process of the medium-consistency pressure screen currently on the market, the screen drum is an important screening component of the medium-consistency pressure screen, and there are heavy impurities in the bobbin pulp. The greater the centrifugal inertia, over time, the heavy impurities will directly cause excessive wear on the screen drum, increase the breakage rate of the screen drum, increase the maintenance frequency of the drum screen, and also increase the use cost of the medium-consistency pressure screen, so there is no protection for the drum screen. Function.

Utility model content

The purpose of the utility model is to solve the shortcoming of the prior art that the drum screen does not have a protective function, and propose a medium-concentration pressure screen that avoids heavy impurities from wearing the screen drum.

In order to achieve the above object, the utility model adopts the following technical solutions:

A medium-consistency pressure screen for preventing heavy impurities from wearing the screen drum, comprising a screen cylinder, the front of the screen cylinder is fixedly connected with a controller, the top of the right side of the screen cylinder is connected with a feed pipe, and the left side of the screen cylinder is The bottom of the screen is connected with a discharge pipe and a slag discharge pipe in turn from top to bottom, and a drum screen is fixedly connected to the outside of the inner cavity of the screen cylinder, and an auxiliary mechanism used in conjunction with the drum screen is provided in the inner cavity of the screen cylinder.

As a preferred solution: the auxiliary mechanism includes a drive motor, the drive motor is fixed on the top of the screen cylinder, and the output shaft of the drive motor is fixedly connected with a reducer and a crushing frame from top to bottom in sequence, and the crushing frame There are turbulence blades fixedly connected to the four sides of the drum sieve. The inner cavity of the drum screen is integrally processed with a reinforced frame and the inner side of the reinforced frame is vertically provided with reinforcing plates. The inner side of the reinforced plate is sequentially provided with arc The inner side of the arc-shaped elastic ring is fixedly connected with a protective grid used in conjunction with the drum screen.

As a preferred solution: the crushing frame adopts a spiral design, the turbulent blade adopts a streamlined design, and the turbulent blades and the crushing frame are distributed in a staggered state.

As a preferred solution: the mesh shape of the protective net frame is set as a rhombus, and the mesh shape of the drum screen is set as a honeycomb structure.

As a preferred solution: the inner cavity of the reinforcing frame is provided with a ring-shaped sliding rail, and the four sides of the inner cavity of the ring-shaped sliding rail are slidably connected with limiting protrusions fixedly fitted with the reinforcing plate.

As a preferred solution: the inner cavity of the reinforcing plate is provided with a T-shaped chute vertically, and the upper and lower sides of the inner cavity of the T-shaped chute are slidably connected with T-shaped sliders that are fixedly matched with the arc-shaped elastic ring. Both sides of the reinforcing plate are fixedly connected with scrapers used in conjunction with the inner wall of the drum screen from top to bottom.

As a preferred solution: the inner side of the reinforcing plate is fixedly connected with curved rods sequentially from top to bottom, and the periphery of the outer wall of the drum screen is fixedly connected with deflectors.

In the utility model, the medium-concentration pressure screen that avoids heavy impurities from wearing the screen drum is provided with an auxiliary mechanism, and the driving source is provided by the drive motor, and then the speed reducer, the crushing frame and the turbulent blade cooperate to control the screen drum. The heavy impurities in the inner slurry are fully and effectively crushed to reduce the production of heavy impurities, and protect the drum screen from the source of heavy impurities. The overall strength of the drum screen is strengthened by the cooperation of the reinforced skeleton and the reinforced plate. treatment to improve the overall compression and wear resistance of the drum sieve, and the cooperation of the arc-shaped elastic ring and the protective grid to effectively divert and buffer the stress-bearing surface of the drum sieve to provide protection for the stress-bearing surface of the drum sieve Measures can effectively slow down the wear and damage speed of heavy impurities on the drum screen, prolong the normal service life of the drum screen, reduce the breakage rate and maintenance rate of the drum screen, and save the use cost of the medium-consistency pressure screen.

Through the spiral design of the crushing frame, the contact area between the crushing frame and the heavy impurities in the slurry is increased, and the crushing effect of the crushing frame on heavy impurities is also enhanced. The streamline design of the turbulence blade is adopted to reduce the heavy impurities in the slurry around the crushing frame. At the same time of auxiliary crushing, the slurry is also effectively turbulent, so that the slurry evenly reaches the drum screen area, which plays an auxiliary protective role for the drum sieve. The turbulent blades and the crushing frame are distributed in a staggered state to avoid the turbulent blades and crushing. The collision and conflict of the frame is beneficial to the crushing and turbulence of heavy impurities in the slurry. The mesh shape of the protective grid frame is set as a rhombus and the mesh shape of the drum screen is set as a honeycomb structure. Different mesh shapes are used to achieve heavy impurities in the slurry. The effect of double buffer filtration of impurities.

Provide sliding limit compensation for the reinforcement plate through the annular slide rail and the limit protrusion, improve the stability of the reinforcement plate during rotation, and provide elastic deformation displacement compensation for the arc-shaped elastic ring through the T-shaped slide groove and T-shaped slider , effectively weaken the impact force strength of the protective grid, and effectively scrape and clean the serous impurities attached to the inner wall of the drum sieve through the scraper, so as to prevent the serous impurities from clogging the meshes of the inner wall of the drum sieve, and filter the inner wall of the drum sieve through the deflector The outflowing slurry and light impurities are diverted to facilitate the unloading of slurry and light impurities. Through the bending rod, the consistency of the reinforcement plate rotation process is maintained, and the overall stability of the reinforcement plate rotation is improved.

Description of drawings

Fig. 1 is a structural schematic diagram of a medium-consistency pressure screen proposed by the utility model to avoid wear of the screen drum by heavy impurities;

Fig. 2 is a partial cross-sectional view of the structure of a medium-consistency pressure screen proposed by the utility model to prevent heavy impurities from wearing the screen drum;

Fig. 3 is the bottom view of the structure of the drive motor, reducer, crushing frame and spoiler blade proposed by the utility model;

Fig. 4 is the partial internal view sectional view of the structure of the drum screen proposed by the utility model;

Fig. 5 is a structural front view of the reinforcing plate and the arc-shaped elastic ring proposed by the utility model.

In the figure: 1. Screen cylinder; 2. Feed pipe; 3. Discharge pipe; 4. Slag discharge pipe; 5. Drum screen; 6. Auxiliary mechanism; 61. Drive motor; 62. Reducer; 63. Crushing frame ; 64, spoiler blade; 65, reinforced skeleton; 66, reinforced plate; 67, arc elastic ring; 68, protective net frame; 10. T-shaped slider; 11. Scraper; 12. Baffle; 13. Bending rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Embodiment one

Referring to Figures 1-5, a medium-concentration pressure screen that avoids heavy impurities from wearing the screen drum includes a screen drum 1, a controller is fixedly connected to the front of the screen drum 1, and a feed pipe 2 is connected to the top of the right side of the screen drum 1. The bottom of the left side of the screen cylinder 1 is connected with the discharge pipe 3 and the slag discharge pipe 4 in sequence from top to bottom. The outside of the inner cavity of the screen cylinder 1 is fixedly connected with the drum screen 5. The auxiliary mechanism 6 used in conjunction with the auxiliary mechanism 6 is provided with a drive source by the drive motor 61, and then the cooperation of the reducer 62, the crushing frame 63 and the turbulence blade 64 can fully remove the heavy impurities in the slurry in the screen cylinder 1. And the effective pulverization treatment reduces the generation of heavy impurities, and protects the drum sieve 5 from the source of heavy impurities.

The overall strength of the drum screen 5 is strengthened by the cooperation of the reinforcement frame 65 and the reinforcement plate 66 to improve the overall compression resistance and wear resistance of the drum screen 5, and then the arc-shaped elastic ring 67 and the protective grid frame 68 cooperate to Effective diversion and buffer treatment is carried out around the stress-bearing surface of drum sieve 5, and protective measures are provided for the stress-bearing surface of drum sieve 5, which effectively slows down the wear and damage speed of heavy impurities on drum sieve 5, prolongs the normal service life of drum sieve 5, and reduces The broken rate and maintenance rate of the drum screen 5 save the use cost of the medium-consistency pressure screen.

Embodiment two

Improvement on the basis of Example 1: a medium-concentration pressure screen that avoids heavy impurities from wearing the screen drum, including a screen drum 1, the front of the screen drum 1 is fixedly connected to a controller, and the top of the right side of the screen drum 1 is connected to a feed material The pipe 2 and the bottom of the left side of the screen cylinder 1 are connected with the discharge pipe 3 and the slag discharge pipe 4 in sequence from top to bottom. There are deflectors 12. According to the weight of impurities and slurry, the impurities and slurry are subjected to auxiliary diversion and feeding. The inner cavity of the screen drum 1 is provided with an auxiliary mechanism 6 used in conjunction with the drum screen 5. The auxiliary mechanism 6 Including drive motor 61, drive motor 61 is fixed on the top of sieve drum 1, the output shaft of drive motor 61 is fixedly connected with reducer 62 and crushing frame 63 in turn from top to bottom, crushing frame 63 adopts spiral design, increases the size of the crushing frame 63 and the contact area of the heavy impurities in the slurry, and also enhance the crushing effect of the crushing frame 63 on the heavy impurities.

The four sides of the crushing frame 63 are fixedly connected with spoiler blades 64. The streamlined design of the spoiler blades 64 assists in crushing the heavy impurities in the slurry around the crushing frame 63, and at the same time effectively disturbs the slurry to make the slurry uniform. Reaching the drum sieve 5 area, it plays an auxiliary protective role for the drum sieve 5. The turbulent blades 64 and the crushing frame 63 are distributed in a staggered state to avoid collisions between the turbulent blades 64 and the crushing frame 63, which is beneficial to the crushing and disintegration of heavy impurities in the slurry. For turbulence work, the inner cavity of the drum screen 5 is integrally processed with a reinforcing frame 65 and a reinforcing plate 66 is vertically arranged around the inner side of the reinforcing frame 65 .

The inner cavity of the reinforced skeleton 65 is provided with an annular slide rail 7, and the surroundings of the annular slide rail 7 inner cavity are slidably connected with a limit bump 8 fixedly matched with the reinforcing plate 66, and the reinforcing plate 66 is provided with sliding limit compensation to improve Stability in the rotation process of reinforcing plate 66, the inner chamber of reinforcing plate 66 is provided with T-shaped chute 9 vertically, and the upper and lower sides of T-shaped chute 9 inner chambers are all slidably connected with arc-shaped elastic ring 67 and fixedly fit. The T-shaped slide block 10 provides elastic deformation displacement compensation for the arc-shaped elastic ring 67, and effectively weakens the impact force strength of the protective net frame 68.

The two sides of the reinforcing plate 66 are fixedly connected with the scraper 11 used in conjunction with the inner wall of the drum screen 5 from top to bottom, to effectively scrape and clean the slurry impurities attached to the inner wall of the drum screen 5, and to avoid the impact of the slurry impurities on the inner wall of the drum screen 5. Mesh causes blockage, and the inner side of reinforcing plate 66 is fixedly connected with bent rod 13 successively from top to bottom, makes reinforcing plate 66 keep consistency in the rotation process, improves the overall stability of reinforcing plate 66 rotation, and the inner side of reinforcing plate 66 is from top to bottom. An arc-shaped elastic ring 67 is sequentially arranged on the bottom, and the inner side of the arc-shaped elastic ring 67 is fixedly connected with a protective net frame 68 used in conjunction with the drum screen 5 .

The mesh shape of the protective net frame 68 is set as a rhombus, and the mesh shape of the drum screen 5 is set as a honeycomb structure. Using different mesh shapes, the effect of double buffering and filtering of heavy impurities in the slurry is achieved. By setting the auxiliary mechanism 6, driven The motor 61 provides the driving source, and then with the cooperation of the reducer 62, the crushing frame 63 and the turbulence blade 64, the heavy impurities in the slurry in the screen cylinder 1 are fully and effectively crushed to reduce the production of heavy impurities and reduce the heavy impurities. Play a protective role to the drum screen 5 at the source.

The overall strength of the drum screen 5 is strengthened by the cooperation of the reinforcement frame 65 and the reinforcement plate 66 to improve the overall compression resistance and wear resistance of the drum screen 5, and then the arc-shaped elastic ring 67 and the protective grid frame 68 cooperate to Effective diversion and buffer treatment is carried out around the stress-bearing surface of drum sieve 5, and protective measures are provided for the stress-bearing surface of drum sieve 5, which effectively slows down the wear and damage speed of heavy impurities on drum sieve 5, prolongs the normal service life of drum sieve 5, and reduces The broken rate and maintenance rate of the drum screen 5 save the use cost of the medium-consistency pressure screen.

In the utility model, the worker first injects the slurry pretreated by water crushing into the screen cylinder 1 through the feed pipe 2, and then the controller controls the drive motor 61 to drive the crushing frame 63 to centrifugally rotate through the reducer 62, and the crushing frame While the 63 performs spiral crushing on the heavy impurities in the slurry, it also drives the cross-distributed turbulence blades 64 to assist in crushing the heavy impurities in the surrounding slurry.

At the same time, the slurry is evenly disturbed to the vicinity of the protective net frame 68 and the drum screen 5, and under the turbulence of the turbulence blade 64, the slurry forms a vortex in the drum screen 5. Sliding compensation is provided to the reinforcing plate 66, and then under the eddy current force, the curved rod 13 and the reinforcing plate 66 are forced to rotate synchronously with the water flow inside the reinforcing frame 65 on the drum screen 5, and the reinforcing plate 66 drives the protective grid frame 68 in the drum. The inner side of the sieve 5 rotates with the water flow, and at the same time, the reinforcing plate 66 also drives the scraper 11 to rotate and scrape off the impurities attached to the inner wall of the drum sieve 5 .

Then the material strength of the drum screen 5 is carried out by the reinforced skeleton 65 and the reinforced plate 66, and when the disturbed slurry and heavy impurities reach the position of the protective grid frame 68 in the rotating state, the impact force of the disturbed slurry and heavy impurities will Next, the protective net frame 68 in the rotating state is forced to squeeze and deform the arc-shaped elastic ring 67, and the deformed arc-shaped elastic ring 67 drives the T-shaped slider 10 to slide outward in the T-shaped chute 9. Under the condition, the impact force on the protective net frame 68 carries out elastic buffer compensation.

Weaken the impact strength of the heavy impurities in the slurry filtered by the protective net frame 68 rhombic mesh to reach the position of the drum screen 5, reduce the impact and damage of the heavy impurities on the drum screen 5, and finally the honeycomb mesh of the drum screen 5 will impact the slurry The impurities in the screen can be filtered, and under the auxiliary diversion effect of the deflector 12, due to the weight of the impurities, they float in the lower area of the screen cylinder 1 and are discharged from the slag discharge pipe 4, which is located on the upper layer of the slag discharge pipe 4. The sieved slurry is then discharged from the discharge pipe 3.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. The utility model provides a avoid well dense pressure sieve of heavy impurity wearing and tearing screen cylinder, includes screen cylinder (1), its characterized in that: the novel sieve tube is characterized in that a controller is fixedly connected to the outside of the sieve tube (1), a feeding tube (2) is communicated to the top of one side of the sieve tube (1), a discharging tube (3) and a slag discharging tube (4) are sequentially communicated from top to bottom at the bottom of the other side of the sieve tube (1), a drum screen (5) is fixedly connected to the outer side of an inner cavity of the sieve tube (1), and an auxiliary mechanism (6) matched with the drum screen (5) for use is arranged in the inner cavity of the sieve tube (1).

2. The medium concentration pressure screen for avoiding heavy impurity abrasion of the screen cylinder according to claim 1, characterized in that the auxiliary mechanism (6) comprises a driving motor (61), the driving motor (61) is fixed at the top of the screen cylinder (1), a speed reducer (62) and a crushing frame (63) are sequentially and fixedly connected with an output shaft of the driving motor (61) from top to bottom, turbulent blades (64) are fixedly connected to the periphery of the crushing frame (63), a reinforcing framework (65) is integrally processed in an inner cavity of the drum screen (5), reinforcing plates (66) are vertically arranged on the periphery of the inner side of the reinforcing framework (65), arc-shaped elastic rings (67) are sequentially arranged on the inner side of the reinforcing plates (66) from top to bottom, and a protective net rack (68) matched with the drum screen (5) is fixedly connected to the inner side of the arc-shaped elastic rings (67).

3. A medium consistency pressure screen avoiding heavy impurity wear of screen cylinder according to claim 2, characterized in that the crushing frame (63) is of spiral design, the turbulence blades (64) are of streamline design, and the turbulence blades (64) and the crushing frame (63) are distributed in a staggered state.

4. A medium consistency pressure screen avoiding heavy impurity wear of the screen cylinder according to claim 2, characterized in that the mesh shape of the protective wire frame (68) is arranged as diamond shape and the mesh shape of the drum screen (5) is arranged as honeycomb structure.

5. The medium-concentration pressure screen for avoiding heavy impurity abrasion of the screen cylinder according to claim 2, wherein the inner cavity of the reinforcing framework (65) is provided with an annular sliding rail (7), and limit protruding blocks (8) fixedly matched with the reinforcing plate (66) are slidably connected around the inner cavity of the annular sliding rail (7).

6. The medium-concentration pressure screen for avoiding heavy impurity abrasion of the screen cylinder according to claim 2, wherein a T-shaped chute (9) is vertically arranged in the inner cavity of the reinforcing plate (66), the upper side and the lower side of the inner cavity of the T-shaped chute (9) are both in sliding connection with T-shaped sliding blocks (10) fixedly matched with the arc-shaped elastic rings (67), and the two sides of the reinforcing plate (66) are both fixedly connected with scraping plates (11) matched with the inner wall of the screen drum (5) from top to bottom in sequence.

7. The medium-concentration pressure screen for avoiding heavy impurity abrasion of the screen cylinder according to claim 2, wherein the inner side of the reinforcing plate (66) is fixedly connected with a bent rod (13) sequentially from top to bottom, and the periphery of the outer wall of the screen drum (5) is fixedly connected with guide vanes (12).

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