CN214496981U - Slurry saving device for middle and low concentration heavy purification system end - Google Patents

Abstract

The utility model discloses a thick liquid ware of festival that is used for well, low dense matter clean system end relates to paper pulp purifier technical field, include: the support, install last cone and the lower cone on the support, go up the fixed connection between cone and the lower cone, go up cone upper end fixedly connected with into thick liquid head, advance to be provided with into thick liquid mouth and good thick liquid mouth on the thick liquid head, lower cone bottom fixedly connected with row sediment mouth, lower cone side is provided with elutriation device. The lower cone is arranged below the upper cone, and the lower cone is provided with the elutriation device, so that the pulp residue generated by the upper cone is elutriated again to recover the fibers, and the effect of the pulp saver on fiber recovery is greatly improved.

Description

Slurry saving device for middle and low concentration heavy purification system end

Technical Field

The utility model relates to a paper pulp purifier technical field, in particular to a festival thick liquid ware that is used for middle and low dense matter clean system end.

Background

The paper pulp of paper mill is mainly removed of impurities by adopting a cylindrical screen and a multi-section conical slag remover, and clean pulp is sent to a paper machine after multi-stage slag removal. Because the inlet and outlet of the end-section conical slag separator have pressure requirements, the final pulp residue still contains a small part of fibers and still has recovery value.

Because a small part of fibers in the pulp residue are recycled, the process is complex, and the cost investment is large, the fibers in the pulp residue at the tail section of most paper mills are not recycled at present, but are directly discharged and treated, so that the serious waste of the fibers is caused, and the environment-friendly concept is seriously not met.

Disclosure of Invention

Aiming at the defects, the utility model aims at providing a festival thick liquid ware that is arranged in, low dense matter clean system is terminal, this festival thick liquid ware simple structure is showing the fibre effect in retrieving the thick liquid sediment moreover.

In order to realize the purpose, the technical scheme of the utility model is that:

a slurry economizer for the end of a medium and low consistency heavy ends purification system comprising: the support is installed last cone and lower cone on the support, go up the cone with fixed connection between the cone down, go up cone upper end fixedly connected with into thick liquid head, it is provided with into thick liquid mouth and good thick liquid mouth to advance on the thick liquid head, cone bottom fixedly connected with row sediment mouth down, the cone side is provided with elutriation device down.

The lower cone comprises a rotary cavity, a transition cavity and a discharge channel, the rotary cavity is fixedly connected with the upper cone, the elutriation device comprises an elutriation pipe, the elutriation pipe is located on the outer side of the rotary cavity and communicated with the rotary cavity, and the direction of an inner opening of the elutriation pipe is parallel to the tangential direction of the section of the rotary cavity.

The slurry inlet is positioned on the side surface of the slurry inlet head and comprises a spiral feeding channel, the feeding channel extends to the inside of the slurry inlet head, and the inner opening of the feeding channel is parallel to the tangential direction of the section of the inner cavity of the slurry inlet head.

Wherein the slurry saver is obliquely arranged on the bracket.

Wherein the horizontal installation angle of the slurry saving device and the ground is 30-60 degrees.

Wherein, the inside ceramic inner bag that is provided with of festival thick liquid ware.

The lower cone is fixedly arranged on the bracket through a U-shaped clamp.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

because the utility model relates to a thick liquid ware of festival that is used for middle and low dense matter clean system end, include: the support, install last cone and the lower cone on the support, go up the fixed connection between cone and the lower cone, go up cone upper end fixedly connected with into thick liquid head, advance to be provided with into thick liquid mouth and good thick liquid mouth on the thick liquid head, lower cone bottom fixedly connected with row sediment mouth, lower cone side is provided with elutriation device. The lower cone is arranged below the upper cone, and the lower cone is provided with the elutriation device, so that the pulp residue generated by the upper cone is subjected to secondary elutriation, the fiber in the pulp residue is recovered, the effect of the pulp saver on fiber recovery is greatly improved, and the fiber loss is reduced to the minimum.

To sum up, the utility model relates to a thick liquid ware of festival that is arranged in, low dense matter clean system end has solved among the prior art thick liquid sediment that the scummer produced and has directly discharged, causes the extravagant technical problem of fibre, the utility model relates to a thick liquid ware of festival that is arranged in, low dense matter clean system end can carry out the secondary to thick liquid sediment and retrieve to reduce fibrous waste, more environmental protection.

Drawings

FIG. 1 is a schematic structural view of a slurry saver for the end of a medium and low concentration heavy purification system of the present invention;

FIG. 2 is a cross-sectional view of the lower cone of FIG. 1;

FIG. 3 is a top plan view of the slurry inlet head of FIG. 1;

in the figure: 10. the device comprises a bracket, 11, a U-shaped clamp, 20, a pulp inlet head, 21, a good pulp port, 22, a pulp inlet, 221, a feeding channel, 30, an upper cone, 31, a sediment chamber, 32, a slag removing chamber, 50, a lower cone, 51, an elutriation pipe, 53, a rotation chamber, 54, a transition chamber, 55, a discharge channel, 60, a slag discharge nozzle, 61 and a straight cylinder surface.

Detailed Description

The invention is further explained below with reference to the drawings and examples.

All the orientations referred to in the present specification are based on the orientations shown in the drawings, and only represent relative positional relationships, not absolute positional relationships.

As shown in fig. 1, a slurry saver for the end of a medium and low concentration heavy purification system comprises: the support 10, install the last cone 30 on the support 10, go up cone 30 slope and fix on support 10, go up cone 30 and ground horizontal installation angle be 30 ~ 60, the preferred installation angle of this embodiment is 38, this installation angle can make the thick liquid that gets into this device can be the rotary force that the gravity is converted into the thick liquid to the at utmost to increase the rotational speed of thick liquid, improved the separation effect of this equipment greatly, can also adopt other installation angles in the actual design, such as 30 or 60, this embodiment does not do the restriction to this.

As shown in fig. 1 and fig. 3, the upper end of the upper cone 30 is fixedly connected with a slurry inlet head 20, and the slurry inlet head 20 is fixedly connected with the upper cone 30 through flange bolts. The side of the pulp inlet head 20 is provided with a pulp inlet 22, the pulp inlet 22 comprises a spiral feeding channel 221, the feeding channel 221 extends into the pulp inlet head 20 along the inner wall of the pulp inlet head 20, and the inner opening of the feeding channel 221, which is positioned inside the pulp inlet head 20, faces the tangential direction parallel to the section of the inner cavity of the pulp inlet head 20. Thereby guaranteed into thick liquid head 20 and can make thick liquids follow the tangent line and get into festival thick liquid ware, the tangent line gets into the thick liquids of festival thick liquid ware, can be under the prerequisite that need not set up the thick liquid and supply the thick liquid alone, only utilize the potential difference of anterior segment equipment, can the rotation of the thick liquids in festival thick liquid ware of furthest realization to the energy consumption has significantly reduced. A good pulp opening 21 is arranged at the middle position of the top of the pulp inlet head 20, a good pulp pipe (not shown in the figure) is connected to the good pulp opening 21, and the good pulp pipe extends inwards into the pulp inlet head 20. The good pulp pipe can effectively separate the pulp after deslagging from the pulp without deslagging, and prevent the pulp just entering from the pulp inlet 22 from being directly discharged from the good pulp outlet 21.

As shown in FIG. 1, the upper cone 30 comprises a deslagging chamber 32 communicated with the slurry inlet head 20 and a slag settling chamber 31 at the bottom of the deslagging chamber 32. A slag discharging valve is arranged between the slag removing chamber 32 and the slag settling chamber 31, and controllable slag discharging can be realized by opening and closing the slag discharging valve.

As shown in fig. 1 and 2, a lower cone 50 is fixedly connected to the bottom of the slag settling chamber 31. The lower cone 50 is mounted on the support 10. The installation angle is consistent with that of the upper cone 30, and the upper cone 30 and the lower cone 50 are coaxial, so that slurry is effectively transmitted to the lower cone 50 from the upper cone 30, and the middle resistance is reduced. Lower cone 50 is fixed on support 10 through U-shaped card 11, and the cone portion of cone 50 is down installed to U-shaped card 11, utilizes the installation of U-shaped card 11, can effectually solve because of the vibration that causes among the festival thick liquid ware slagging-off process to prevent because of the long-term damage that vibration caused to festival thick liquid ware, increase festival thick liquid ware life. The lower cone 50 includes a rotation chamber 53, a transition chamber 54, and a discharge passage 55. The top of the rotating chamber 53 is provided with an internal thread, and the bottom end of the upper cone 30 is provided with an external thread matching the internal thread in the rotating chamber 53, so that the rotating chamber 53 and the upper cone 30 are screwed together. The outer side of the lower cone 50 is provided with an elutriation device, the elutriation device comprises an elutriation pipe 51, and the elutriation pipe 51 is positioned at the outer side of the rotating cavity 53, is introduced into the rotating cavity 53 and is communicated with the rotating cavity 53. The cross-section of the spin chamber 53 is circular, and the opening direction of the elutriation tube 51 in the spin chamber 53 is parallel to the tangential direction of the spin chamber 53. The tangential direction of the opening of the elutriation pipe 51 is set, so that the elutriation water entering the lower cone 50 from the elutriation pipe 51 can give a transverse impact force to the pulp slag falling from the upper cone 30, so that the pulp slag rotates in the rotating cavity 53 along with the elutriation water, and the pulp slag is subjected to secondary centrifugal deslagging.

As shown in fig. 1, the bottom of the lower cone 50 is fixedly connected with a slag discharging nozzle 60, the slag discharging nozzle 60 is fixed on the lower cone 50 in a threaded screwing mode, the slag discharging nozzle 60 is provided with a straight cylinder surface 61, and the straight cylinder surface 61 is arranged on the slag discharging nozzle 60, so that the contact area between the slag discharging nozzle 60 and the slurry slag is increased, the abrasion of the slag discharging nozzle 60 is reduced, and the straight cylinder surface 61 can be beneficial to the discharge of the slurry slag to prevent the slag discharging nozzle from being blocked.

In order to enable the slurry saver to have the maximum abrasion resistance, a ceramic inner container is further arranged inside the slurry saver.

As shown in fig. 1, fig. 2 and fig. 3, the working process of the slurry saver for the end of the medium and low concentration heavy purification system of the present invention is as follows:

firstly, the fiber suspension slurry is mixed by a separately designed mixer and then enters a slurry saver by utilizing the residual pressure of front-section equipment, potential energy is converted into the kinetic energy of the slurry through the potential difference, and therefore the slurry can move after entering the slurry saver. The slurry enters the slurry inlet head 20 through the slurry inlet 22 in a tangent mode, the slurry entering the slurry in the tangent mode does rotating motion in the deslagging chamber 32 of the upper cone 30, and the slurry is spun by the slurry, so that heavy impurity slurry slag such as fine gravel in the slurry is thrown onto the side wall of the deslagging chamber 32 under the centrifugal action, and then enters the slag settling chamber 31 along the side wall. The slurry after deslagging is positioned at the center of the slurry and is discharged from a good slurry port 21.

Secondly, the pulp slag in the sediment chamber 31 enters the rotating cavity 53 of the lower cone 50, the rotating kinetic energy of the pulp slag is very small, the elutriation water enters the elutriation pipe 51 along the tangential direction of the rotating cavity 53, the elutriation water gives the pulp slag transverse impact force, the pulp slag is diluted, the pulp slag rotates around the rotating cavity 53 along with the elutriation water, the fibers in the pulp slag are washed back to the pulp by the elutriation water and then return to the upper cone 30 from the upper part of the rotating cavity 53, gravel and other heavy impurities fall into the bottom, and the pulp saver is discharged from the slag discharge nozzle 60.

The utility model relates to a thick liquid sediment that is arranged in, low terminal festival thick liquid ware of dense heavy matter clean system can high-efficiently get rid of heavy impurity such as tiny gravel in the fibre thick liquid and can the secondary recovery fibre, ensure that the fibre loss is accomplished minimum. Through back washing and continuous discharge of the rotary cavity, fiber loss is reduced to the minimum, and discharge of pulp residues in the pulp is ensured. And this device need not the thick liquid design of thick liquid pump confession alone, and the thick liquid utilizes the residual pressure of anterior segment equipment, more saves power, can not increase the energy consumption.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims (7)

1. A slurry economizer for the end of a medium and low consistency heavy purification system, comprising: the support is installed last cone and lower cone on the support, go up the cone with fixed connection between the cone down, go up cone upper end fixedly connected with into thick liquid head, it is provided with into thick liquid mouth and good thick liquid mouth to advance on the thick liquid head, cone bottom fixedly connected with row sediment mouth down, the cone side is provided with elutriation device down.

2. The slurry saver for the end of a medium and low consistency and heavy purification system as claimed in claim 1, wherein the lower cone comprises a rotating cavity, a transition cavity and a discharge channel, the rotating cavity is fixedly connected with the upper cone, the elutriation device comprises an elutriation pipe, the elutriation pipe is positioned outside the rotating cavity and is communicated with the rotating cavity, and the inner opening direction of the elutriation pipe is parallel to the tangential direction of the section of the rotating cavity.

3. The slurry economizer for the tail end of medium and low consistency heavy purification systems as claimed in claim 1, wherein the slurry inlet is positioned at the side surface of the slurry inlet head, the slurry inlet comprises a spiral feeding channel, the feeding channel extends to the inside of the slurry inlet head, and the inner opening of the feeding channel is parallel to the tangential direction of the section of the inner cavity of the slurry inlet head.

4. The economizer for the end of medium and low consistency heavy purification systems as claimed in claim 1 wherein the economizer is mounted on the support at an angle.

5. The slurry saver for the end of a medium and low consistency heavy purification system as claimed in claim 4 wherein the angle of horizontal installation of the slurry saver is 30 ° to 60 ° to the ground.

6. The slurry saver for the tail end of a medium and low concentration heavy purification system according to claim 1, wherein a ceramic liner is arranged inside the slurry saver.

7. The slurry economizer for the end of medium and low consistency heavy purification systems as claimed in claim 1 wherein said lower cone is fixedly mounted on said support by a U-shaped clamp.

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