CN204699988U - A kind of paper grade (stock) chip washing, selection system - Google Patents

Abstract

A wood chip washing and selection system for papermaking, which includes a washing device and a screening device. The washing device includes a box body and a stirring roller. Two stirring rollers are arranged side by side inside the box body. , there is a settling bin inside the box facing the lower part of the stirring roller. The settling bin is composed of upper and lower parts, and the upper and lower parts are fixedly connected by flanges. There is a filter screen inside the lower part of the settling bin. The screening device includes There is a screen frame and a vibrating motor, the vibrating motor is installed on the side wall of the screen frame, the inside of the screen frame is provided with a primary screen and a secondary screen, the primary screen and the secondary screen are connected by vibrating springs, the primary screen The rightmost end is provided with a discharge port A, the lower part of the right end of the secondary screen is provided with a discharge port B, and the lower end of the discharge port B is provided with a collection bin, which is installed on the foot on the right side of the bottom of the screen frame, and is set in the washing machine. The chip outlet on the device box is facing the material inlet of the screen frame of the screening device.

Description

A wood chip washing and selection system for papermaking

technical field

The utility model belongs to the field of papermaking equipment transformation, in particular to a wood chip washing and selection system, in particular to a wood chip washing and selection system for papermaking.

Background technique

In the existing papermaking technology, wood chip washing and selection are indispensable operations. The existing wood chip washing devices generally use single-roll washing, which has the problems of insufficient residue washing, poor washing effect, and insufficient impurity precipitation. , and the sedimentation chamber of the washing device used in the existing papermaking technology is an integral structure. When the washing time is too long, impurities are easy to deposit at the bottom of the sedimentation chamber. Due to the long deposition time, it is easy to cause hardening, which in turn leads to clogging of the slag discharge pipeline The problem. If the impurities inside the sedimentation bin are hardened, it must be disassembled and cleaned. The cleaning workload is huge, which wastes manpower and greatly reduces work efficiency. The teeth of the stirring rollers used in the prior art are all arranged in a conventional linear order, and the arrangement is easy to cause the wood chips inside the box to be guided and circulated during the washing process, thereby reducing the efficiency of picking wood chips, increasing the picking time, and reducing work efficiency;

On the other hand, the screening device generally adopts single-stage screening, and the wood chips are screened at one time through the vibrating screen. The qualified wood chips flow out from one end of the screen frame, and the unqualified wood chips will be shaken to the ground, and finally cleaned up and sold as waste. , but the disadvantage of one-time screening is that the unqualified wood chips screened out are often mixed with 5%-15% qualified wood chips, which causes a large waste of raw materials and greatly increases the cost of papermaking for enterprises. .

In summary, the traditional equipment used in the existing papermaking technology still needs to be further improved, and this design also makes corresponding technical improvements for the above problems.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a papermaking wood chip washing and selection system with reasonable structure, high raw material utilization rate, high wood chip washing efficiency and convenient cleaning device.

The purpose of this utility model is achieved in this way: a wood chip washing and selection system for papermaking, which includes a washing device and a screening device, the washing device includes a box body and a stirring roller, and the upper end of the box body is on the left A wood chip feeding port is provided at the position, a circulating fluid inlet is arranged on the outer wall of the left end of the box, a bearing seat and a transmission motor are arranged on the outer wall of the box, and the stirring roller is arranged inside the box. And one end is connected to the bearing seat through the internal rotating shaft, and the other end is connected to the transmission motor through the internal rotating shaft. There are two stirring rollers arranged side by side inside the box, and the stirring rollers are intricately provided with shifting teeth. The interior of the above-mentioned box is provided with a settling bin facing the lower part of the stirring roller. The settling bin is composed of upper and lower parts, and the upper and lower parts are fixedly connected by flanges. The lower part of the settling bin is equipped with A filter screen, the lower end of the sedimentation bin is connected with a slagging pipe, the slagging pipe is provided with a slagging valve, and the lower end of the slagging valve is provided with a slagging port. The rightmost end of the box body is provided with a wood chip discharge port, and the upper end of the wood chip discharge port is provided with an observation hole;

The screening device includes a screen frame and a vibrating motor, the screen frame is a rectangular screen frame, the upper part of the left end of the screen frame is provided with a material inlet, the lower part of the screen frame is provided with feet, and the vibration The motor is installed on the side wall of the screen frame, and the inside of the screen frame is provided with a primary screen and a secondary screen, the primary screen and the secondary screen are connected by vibrating springs, and the primary screen The rightmost end of the net is provided with a discharge port A, the lower part of the right end of the secondary screen is provided with a discharge port B, and the lower end of the discharge port B is provided with a collection bin, and the collection bin is installed on the screen frame on the bottom right foot;

The wood chip discharge port arranged on the washing device box body is directly facing the material receiving port of the screen frame of the screening device.

The settling bin has a conical structure.

A leak-proof rubber pad is provided between the flanges connected to the upper and lower parts of the settling bin.

The mesh size of the primary screen arranged inside the screen frame is smaller than that of the secondary screen.

The front ends of the shifting teeth arranged on the stirring roller are each provided with a plate.

The beneficial effects produced by the utility model are: the utility model adopts a large-scale washing device, utilizes the large capacity of the large box to set two stirring roller devices inside it, and sets a sedimentation bin under each stirring roller, and two The agitating roller can fully wash the wood chips, and setting a plate at the front end of the stirring roller can increase the amount of scooping during the rotation process, thereby increasing the scooping space without affecting its scooping efficiency of the scoops, even The fishing efficiency exceeds the original equipment; the sedimentation bin is used for the precipitation of impurities, and the sedimentation bin is set as an upper and lower combined structure, and is connected and fixed by a flange, which is convenient for cleaning the stains inside the sedimentation bin. The filter set inside the lower part of the sedimentation bin It can filter impurities and prevent excessive impurities from clogging the slag discharge pipe, and the filter screen can be used as an implantation position for impurities to facilitate the removal of impurities.

In the utility model, multi-stage screening is adopted to select the wood chips, and the first-level screen is used for preliminary selection of the wood chips, and the qualified wood chips screened by the first-level screen are directly discharged from the discharge port A. The unqualified wood chips in the primary screening fall to the secondary screen for secondary screening. Since the mesh size of the secondary screen is larger than that of the primary screen, the screening of the secondary screen is more fine. , so that qualified screening can be carried out again among the unqualified raw materials eliminated by the primary screen, the waste screened by the secondary screen directly falls on the ground, and the qualified wood chips screened by the secondary screen are discharged from the discharge port B , and collected in the collection bin. In this way, the multi-level screening of wood chips is completed, the waste of raw materials is greatly reduced, and the investment in papermaking is directly saved for the enterprise. In general, the utility model has the advantages of reasonable structure, high utilization rate of raw materials, high washing efficiency of wood chips, and convenient cleaning of the washing device.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a front structural schematic view of the washing device of the present invention.

Fig. 3 is a structural schematic diagram of a top view of the washing device of the present invention.

Fig. 4 is a structural schematic diagram of the screening device of the present invention.

In the figure: 1. Washing device 2. Screening device 3. Box body 4. Stirring roller 5. Wood chips feeding port 6. Circulating fluid inlet 7. Bearing seat 8. Transmission motor 9. Gear shifting 10. Sediment bin 11. Flange Disc 12, filter screen 13, slag discharge pipe 14, slag discharge valve 15, slag discharge port 16, wood chip discharge port 17, observation hole 18, screen frame 19, vibration motor 20, material inlet 21, feet 22, first level Screen 23, secondary screen 24, vibrating spring 25, discharge port A 26, discharge port B 27, collection bin 28, plates.

Detailed ways

The technical solution of the utility model will be further elaborated below in conjunction with the embodiments.

Example 1:

As shown in Figures 1-4, a wood chip washing and screening system for papermaking, which includes a washing device 1 and a screening device 2, is characterized in that: the washing device 1 includes a box body 3 and a stirring roller 4, so The upper end of the box body 3 is provided with a chip feeding port 5 at the left side, the outer wall of the left end of the box body 3 is provided with a circulating fluid inlet 6, and the outer wall of the box body 3 is provided with a bearing seat 7 and a transmission Motor 8, the stirring roller 4 is arranged inside the box body 3, and one end is connected to the bearing seat 7 through an internal rotating shaft, and the other end is connected to the transmission motor 8 through an internal rotating shaft, and the stirring roller 4 is inside the box body 3 There are two arranged side by side on the left and right, the stirring roller 4 is intricately provided with shifting teeth 9, and the inside of the box 3 is directly opposite to the lower part of the stirring roller 4. Settling bins 10 are arranged, and the settling bins 10 are composed of upper and lower It consists of two parts, and the upper and lower parts are fixedly connected by flanges 11. A filter screen 12 is arranged inside the lower part of the sedimentation bin 10, and a slag discharge pipe 13 is connected to the lower end of the sedimentation bin 10. The slag discharge pipe 13 is provided with a slag discharge valve 14, the lower end of the slag discharge valve 14 is provided with a slag discharge port 15, and the rightmost end of the box body 3 is provided with a chip discharge port 16, so An observation hole 17 is provided at the upper end of the wood chip discharge opening 16;

The screening device 2 includes a screen frame 18 and a vibrating motor 19, the screen frame 18 is a rectangular screen frame, the upper left end of the screen frame 18 is provided with a material receiving port 20, and the bottom of the screen frame 18 is provided with There are legs 21, and the vibrating motor 19 is installed on the side wall of the screen frame 18. The inside of the screen frame 18 is provided with a primary screen 22 and a secondary screen 23. The primary screen 22 and the secondary screen The primary screen 23 is connected by a vibrating spring 24. The rightmost end of the primary screen 22 is provided with a discharge port A25, and the lower part of the right end of the secondary screen 23 is provided with a discharge port B26. The lower end of B26 is provided with a collection bin 27, and the collection bin 27 is installed on the foot 21 on the right side of the bottom of the screen frame 18;

The chip outlet 16 arranged on the washing device box body 3 is facing the material receiving port 20 of the screen frame 18 of the screening device.

When the utility model is in use: firstly, the circulating fluid enters the inside of the box through the inlet of the circulating fluid, and then the raw wood chips are put into the box of the washing device through the wood chip feeding port by the delivery device, and at this time, the transmission motor drives the stirring roller counterclockwise Rotate, the stirring roller drives the shifting teeth to convey the wood chips, the stirring roller on the left side conveys the wood chips to the position of the right stirring roller, and then the right stirring roller drives the shifting teeth to pick up the wood chips and discharge them from the wood chip outlet The agitating roller plays the role of vibration washing during the fishing process, and the impurities or doped impurities on the surface of the wood chips are progressively washed, and the impurities are washed and precipitated in the sedimentation bin; during the washing process, the position of the teeth on the agitating roller of the wood chips is The intricate setting greatly increases the amount of wood chips to be picked up, and increases the vibration intensity to make the wood chips wash more fully; after the wood chips are washed, the slag discharge valve can be opened to discharge the impurities in the sedimentation bin, and finally the impurities are discharged from the slag discharge port; After working for a long time, if impurities are hardened in the sedimentation chamber, the flange connection can be opened to partially clean the sedimentation chamber. The filter installed in the sedimentation chamber makes cleaning more convenient and efficient;

After being washed by the washing device, the wood chips discharged enter the screen frame through the feeding port, and the vibrating motor drives the screen frame to vibrate reciprocatingly on the vibrating spring. The material port A is discharged, and the unqualified wood chips screened by the primary screen fall to the secondary screen. Since the mesh number of the secondary screen is larger than that of the primary screen, the secondary screen The screening is more detailed, so that the wood chips can be screened at the first level, and the qualified wood chips screened by the secondary screen are finally discharged from the discharge port B and collected in the collection bin, and the unqualified wood chips screened by the secondary screen Drop directly on the ground and clean up as waste. The two-level screening process, compared with the first-level screening of the original equipment, can re-screen the wood chips after the first-level screening, so that 5%-10% of qualified wood chips that are considered waste by the first-level screening are selected, so it is effective It ensures the full utilization of qualified wood chips and greatly reduces the input cost of enterprises. In general, the utility model has the advantages of reasonable structure, high utilization rate of raw materials, high washing efficiency of wood chips, and convenient cleaning of the washing device.

Example 2

As shown in Figures 1-4, a wood chip washing and selection system for papermaking includes a washing device 1 and a screening device 2, and the washing device 1 includes a box body 3 and a stirring roller 4, and the box body 3. A chip feed port 5 is provided at the left side of the upper end. A circulating fluid inlet 6 is provided on the outer wall of the left end of the box body 3. A bearing seat 7 and a transmission motor 8 are arranged on the outer wall of the box body 3. The stirring roller 4 is arranged inside the box body 3, and one end is connected to the bearing seat 7 through an internal rotating shaft, and the other end is connected to the transmission motor 8 through an internal rotating shaft. The stirring roller 4 is arranged side by side inside the box body 3 Two, the stirring roller 4 is intricately provided with shifting teeth 9, and the inside of the box 3 is provided with a settling bin 10 opposite to the lower part of the stirring roller 4, and the settling bin 10 is composed of upper and lower parts. And the upper and lower parts are fixedly connected by flanges 11, a filter screen 12 is arranged inside the lower part of the settling bin 10, and a slag discharge pipe 13 is connected to the lower end of the settling bin 10. A slag discharge valve 14 is arranged on the slag discharge pipe 13, a slag discharge port 15 is provided at the lower end of the slag discharge valve 14, and a wood chip discharge port 16 is provided at the rightmost end of the box body 3, and the wood chip discharge port 16 is provided at the rightmost end of the box body 3. An observation hole 17 is provided at the upper end of the feed port 16;

The screening device 2 includes a screen frame 18 and a vibrating motor 19, the screen frame 18 is a rectangular screen frame, the upper left end of the screen frame 18 is provided with a material receiving port 20, and the bottom of the screen frame 18 is provided with There are legs 21, and the vibrating motor 19 is installed on the side wall of the screen frame 18. The inside of the screen frame 18 is provided with a primary screen 22 and a secondary screen 23. The primary screen 22 and the secondary screen The primary screen 23 is connected by a vibrating spring 24. The rightmost end of the primary screen 22 is provided with a discharge port A25, and the lower part of the right end of the secondary screen 23 is provided with a discharge port B26. The lower end of B26 is provided with a collection bin 27, and the collection bin 27 is installed on the foot 21 on the right side of the bottom of the screen frame 18;

The chip outlet 16 arranged on the washing device box body 3 is facing the material receiving port 20 of the screen frame 18 of the screening device.

The sedimentation bin 10 has a conical structure.

A leak-proof rubber pad is arranged between the flanges 11 connecting the upper and lower parts of the settling bin 10 .

The mesh size of the primary screen 22 arranged inside the screen frame 18 is smaller than that of the secondary screen 23 .

A plate 28 is provided at the front end of the shifting teeth 9 arranged on the stirring roller 4 .

When the utility model is in use: firstly, the circulating fluid enters the inside of the box through the inlet of the circulating fluid, and then the raw wood chips are put into the box of the washing device through the wood chip feeding port by the delivery device, and at this time, the transmission motor drives the stirring roller counterclockwise Rotate, the stirring roller drives the shifting teeth to convey the wood chips, the stirring roller on the left side conveys the wood chips to the position of the right stirring roller, and then the right stirring roller drives the shifting teeth to pick up the wood chips and discharge them from the wood chip outlet ; During the fishing process, the agitating roller plays the role of vibration washing, and the impurities or doped impurities on the surface of the wood chips are progressively washed, and the impurities are washed and precipitated in the sedimentation bin; Chips, and the position of the teeth is intricately set, which greatly increases the amount of wood chips caught, and increases the vibration intensity, so that the wood chips are washed more fully; after the wood chips are washed, the slag discharge valve can be opened to discharge the impurities in the sedimentation bin, and finally It is discharged from the slag discharge port; if impurities are hardened in the sedimentation bin after long-term work, the flange connection can be opened to partially clean the sedimentation bin, and the filter installed in the sedimentation bin makes cleaning more convenient and efficient; among them, the sedimentation bin is set to The conical structure is convenient for the collection of impurities, and it is more convenient for the installation of the flange. The rubber pad installed between the flanges connected to the upper and lower parts of the sedimentation bin can play a better sealing effect, and the water leakage problem will occur during the washing process of placing wood chips. .

After being washed by the washing device, the wood chips discharged enter the screen frame through the feeding port, and the vibrating motor drives the screen frame to vibrate reciprocatingly on the vibrating spring. The material port A is discharged, and the unqualified wood chips screened by the primary screen fall to the secondary screen. Since the mesh number of the secondary screen is larger than that of the primary screen, the secondary screen The screening is more detailed, so that the wood chips can be screened at the first level, and the qualified wood chips screened by the secondary screen are finally discharged from the discharge port B and collected in the collection bin, and the unqualified wood chips screened by the secondary screen Drop directly on the ground and clean up as waste. The two-level screening process, compared with the first-level screening of the original equipment, can re-screen the wood chips after the first-level screening, so that 5%-10% of qualified wood chips that are considered waste by the first-level screening are selected, so it is effective It ensures the full utilization of qualified wood chips and greatly reduces the input cost of enterprises. In general, the utility model has the advantages of reasonable structure, high utilization rate of raw materials, high washing efficiency of wood chips, and convenient cleaning of the washing device.

Claims (5)

1. a paper grade (stock) chip washing, selection system, it includes wash mill and screening plant, it is characterized in that: described wash mill includes casing and agitating roller, the position that keeps left, described casing upper end is provided with chip feed, described casing left end lateral wall is provided with circulation fluid import, described casing lateral wall is provided with bearing block and driving motor, described agitating roller is arranged at box house, and one end is connected on bearing block by inner rotating shaft, the other end is connected with driving motor by inner rotating shaft, described agitating roller has been arranged side by side two about box house, crisscrossly on described agitating roller be provided with moving tooth, described box house is just provided with settling banker to agitating roller bottom, described settling banker forms by upper and lower two parts, and top and the bottom are all fixedly connected with by ring flange, described settling banker lower part inside is provided with a screen pack, described settling banker bottom is all connected with a scum pipe, described scum pipe is provided with a residual cake valve, described residual cake valve lower end is provided with slag-drip opening, described casing low order end is provided with wood chip discharging opening, described wood chip discharging opening upper end is provided with peep hole,

Described screening plant includes screen frame and vibrating motor, the rectangular screen frame of described screen frame, described screen frame left upper part is provided with material receiving port, described screen frame bottom is provided with leg, described vibrating motor is arranged on the sidewall of screen frame, described screen frame inside is provided with one-level screen cloth and secondary screen cloth, described one-level screen cloth is connected by vibrating spring with secondary screen cloth, described one-level screen cloth low order end is provided with discharge gate A, described secondary screen cloth right-hand member bottom is provided with discharge gate B, described discharge gate B lower end is provided with collecting bin, described collecting bin is arranged on the leg on right side bottom screen frame, described be arranged at wood chip discharging opening on wash mill casing just to the material receiving port of screening plant screen frame.

2. a kind of paper grade (stock) chip washing according to claim 1, selection system, is characterized in that: the tapered structure of described settling banker.

3. a kind of paper grade (stock) chip washing according to claim 1, selection system, is characterized in that: be provided with preventing water leakage rubber blanket between the ring flange that described settling banker top and the bottom connect.

4. a kind of paper grade (stock) chip washing according to claim 1, selection system, is characterized in that: the described sieve number being arranged at the one-level screen cloth of screen frame inside is less than the sieve number of secondary screen cloth.

5. a kind of paper grade (stock) chip washing according to claim 1, selection system, is characterized in that: the described moving tooth leading section be arranged on agitating roller is provided with a plate.