CN218609204U

CN218609204U - Wood flour dispersing and adding device

Info

Publication number: CN218609204U
Application number: CN202222570777.4U
Authority: CN
Inventors: 刘建付; 周雪林; 王增建; 滕铭辉
Original assignee: Jiangsu Bohui Paper Industry Co Ltd
Current assignee: Jiangsu Bohui Paper Industry Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-14
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a wood flour dispersing and adding device, which comprises a feeding bin, wherein a discharge port of the feeding bin is connected with a double-screw machine, a pesticide spraying pipe is arranged around an inlet section of the double-screw machine, the discharge port of the double-screw machine is connected with a dispersing and mixing mechanism, a motor of the double-screw machine and a white water regulating valve are interlocked through a control system, the opening degrees of the motor and the white water regulating valve are adjusted, the lower end of the white water conveying pipe is connected with a dispersing groove, a dispersing disc is arranged in the dispersing groove, and white water and wood flour are fully mixed in the dispersing groove to form wood flour slurry; the device has realized automatic wood flour dispersion and has added the process, has improved used wood flour particle homogeneity of papermaking and purity to the quality of papermaking has been promoted, has reduced the white water quantity in addition, has reduced the pollution.

Description

Wood flour dispersing and adding device

Technical Field

The utility model relates to a pulping and papermaking equipment especially relates to a device is added in wood flour dispersion.

Background

In the papermaking industry, part of papermaking fibers with higher cost are replaced by common wood flour, the common wood flour is added in the papermaking wet end process to reduce the papermaking production cost and improve the benefit, and the wood flour is a material between the papermaking fibers and the papermaking filler, contains a large amount of hydroxyl on the surface and has certain hydrophilicity; however, factors such as the particle size of wood flour, cleanliness and the concentration of dispersion liquid in the production process all affect the papermaking quality and the papermaking efficiency.

Disclosure of Invention

Utility model purpose: the utility model provides a device is added in wood flour dispersion, its aim at improves wood flour intensity, homogeneity and cleanliness factor on the one hand, and on the other hand, the ratio of automated control wood flour and plain boiled water improves wood flour slurry quality.

The technical scheme is as follows: wood flour dispersion add device, including throwing the feed bin, throw the feed bin discharge gate and connect the twin-screw machine, the motor of twin-screw machine passes through control system interlock with plain boiled water governing valve, adjusts the aperture of motor rotational speed and plain boiled water governing valve.

Preferably, a liquid medicine sprayer is arranged around the inlet section of the double-screw machine to carry out primary processing on the wood powder.

Preferably, a filter is arranged at the inlet of the centrifugal pump of the dispersing and mixing mechanism, and impurities such as wood blocks and stones with larger grain sizes in the wood powder are removed.

Preferably, a return pipe connected with the dispersion tank is arranged at the outlet of the centrifugal pump of the dispersion mixing mechanism, so that the liquid level of the dispersion tank is balanced, and the dispersion capacity and the uniformity are improved.

Preferably, the feeding bin is provided with a vibrator to prevent wood powder from blocking an outlet of the feeding bin, so that the discharging process is continuously carried out.

Preferably, a dispersion tray is arranged in the dispersion tank of the dispersion mixing mechanism, so that the wood flour and the white water are fully mixed.

The working principle is as follows: wood flour is from throwing the feed bin and carry the dispersion tank through the double screw machine in, it is equipped with the electromagnetic shaker in order to prevent the interior wood flour long-pending material of feed bin to throw the feed bin, the entry of double screw machine is equipped with the liquid medicine atomizer all around, carry out primary processing to wood flour, improve the intensity of wood flour, the motor of double screw machine passes through control system interlock with white water governing valve, adjust the rotational speed of motor and the aperture of white water ooff valve, actuating mechanism links to each other with the dispersion impeller and controls dispersion slew velocity, after wood flour in the dispersion tank filters impurity such as the wood piece and the stone of great particle diameter wherein through the filter, send into the hold up tank through the centrifugal pump in, carry out continuous stirring in the hold up tank, prevent that the wood flour from deposiing, improve the mixing degree of wood flour and white water.

Has the advantages that: compared with the prior art, the utility model has the advantages of as follows: 1. the quality of the wood flour slurry is improved; 2. the uniformity and cleanliness of the wood powder are improved; 3. the strength index of the wood powder is increased in the primary processing process of the wood powder, and the quality of papermaking is improved.

Drawings

FIG. 1 is a schematic view of the wood flour dispersion adding and device of the present invention;

fig. 2 is a top view of the wood powder dispersion plate of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

The wood powder dispersing and adding device of the utility model comprises a feeding bin 1, wherein the feeding bin 1 is provided with a vibrator 2 to prevent wood powder from accumulating in the bin, the discharge port of the feeding bin is connected with a double-screw machine 3, a liquid medicine sprayer is arranged around the inlet section of the double-screw machine, the wood flour is primarily processed to improve the strength of the wood flour, the discharge port of the double-screw machine is connected with a dispersion mixing mechanism, the motor of the double-screw machine is interlocked with the white water regulating valve 5 through a control system, the opening degrees of the motor and the white water regulating valve are controlled, the mixing proportion of the white water consumption and the wood powder is controlled, the lower end of the white water conveying pipe is connected with a dispersion tank 4, a dispersion disc 41 is arranged in the dispersion tank, for further dispersing wood powder and fully mixing with white water, the upper end of the dispersion plate is connected with a speed reducer and a motor to drive the dispersion plate to rotate and control the rotating speed, the lower end of the dispersion tank is provided with a switch valve, the opening degree of the switch valve is automatically controlled by the control system, the wood powder is pumped into the storage tank 6 by the centrifugal pump 43, 10-30 mesh filter 42 that the in-process set up before the centrifugal pump, filter impurity such as the wood piece of great particle diameter and stone in the wood flour, improve the homogeneity and the cleanliness factor of wood flour, the exit of centrifugal pump is equipped with the wood flour device of connecting the dispersion tank, liquid level in the control holding vessel, be equipped with double-deck agitator in the holding vessel, double-deck agitator connection reduction gear and motor, drive double-deck agitator is rotatory and control its rotational speed, carry out continuous stirring with the wood flour thick liquids, prevent that the wood flour from deposiing, improve the mixing degree of wood flour and white water, the wood flour thick liquids in the holding vessel pass through the centrifugal pump and carry wet portion filler department, be equipped with the transport flow of flowmeter monitoring wood flour thick liquids on the pipeline, with signal transmission to control system, adjust the aperture of first ooff valve and second ooff valve.

Claims

1. The wood flour dispersing and adding device comprises a feeding bin (1), a storage mechanism and a dispersing and mixing mechanism and is characterized in that a discharge port of the feeding bin is connected with a double-screw machine (3), a motor of the double-screw machine is interlocked with a white water regulating valve (5) through a control system, and the rotating speed of the motor and the opening degree of the white water regulating valve are regulated.

2. A wood flour dispersion and addition device according to claim 1, wherein a pesticide spraying pipe is arranged around the inlet section of the twin-screw machine (3).

3. Wood flour dispersion addition device according to claim 1, characterized in that a filter (42) is provided at the inlet of a centrifugal pump (43) of the dispersion mixing mechanism.

4. Wood flour dispersion addition device according to claim 1, characterized in that a return pipe connected to the dispersion tank is provided at the outlet of the centrifugal pump (43) of the dispersion mixing mechanism.

5. Wood flour dispersion adding device according to claim 1, characterized in that a vibrator (2) is provided on the feeding bin (1).

6. Wood flour dispersion addition device according to claim 1, characterized in that dispersion tray (41) is provided in dispersion tank (4) of the dispersion mixing mechanism.