Paper pulp diluting device

Abstract

The utility model discloses a paper pulp diluting device. The paper pulp diluting device comprises a water inlet shell, a paper pulp feeding pipe and a diluting pipe which are coaxially arranged, the diluting pipe is communicated with the discharging end of the paper pulp feeding pipe; the water inlet end of the dilution pipe is provided with a water inlet inclined plane which gradually protrudes outwards in the direction away from the water inlet shell; the water inlet shell covers the outer wall of the paper pulp feeding pipe, and a water inlet cavity communicated with the dilution pipe is defined by the water inlet shell, the water inlet inclined plane and the outer wall of the paper pulp feeding pipe; a water inlet through hole is formed in the water inlet inclined surface. According to the utility model, the overall volume can be reduced, the occupied space is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pulp production equipment, in particular to a pulp dilution device. Background Art

[0002] In the papermaking pulping process, the pulp squeezed by the pulp washer needs to be diluted, then stored in the pulp storage tower, and then enter the next pulp washer for further squeezing, which is a process of continuous squeezing and dilution. Traditional pulp dilution devices are all through spiral dilution, specifically, the pulp is conveyed by the spiral, and a dilution water outlet is opened on the side of the spiral shell. Water is continuously added to dilute the pulp during the conveying process, and finally the required dilution concentration is reached. However, the traditional pulp dilution device occupies a large space due to the presence of a spiral, and is more suitable for long-distance transportation. In addition, the maintenance of the device is difficult, and the maintenance cost and use cost are also high. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pulp dilution device which can reduce the occupied space and reduce the use cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A pulp dilution device comprises a water inlet housing, a pulp feed pipe and a dilution pipe which are coaxially arranged;

[0006] The dilution pipe is connected to the discharge end of the pulp feeding pipe;

[0007] The water inlet end of the dilution pipe has a water inlet slope which gradually convexes in a direction away from the water inlet housing;

[0008] The water inlet housing is covered on the outer wall of the pulp feed pipe and is surrounded by the water inlet slope and the outer wall of the pulp feed pipe to form a water inlet cavity connected to the dilution pipe;

[0009] The water inlet inclined surface is provided with a water inlet through hole.

[0010] Furthermore, the water inlet through hole is provided with a nozzle whose water outlet is arranged toward the axis of the dilution tube.

[0011] Furthermore, the axis of the nozzle and the water inlet slope are perpendicular to each other.

[0012] Furthermore, in the axial direction of the dilution pipe, at least two nozzles are sequentially arranged, and the nozzles are sequentially arranged along the inclination direction of the water inlet slope.

[0013] Furthermore, in the circumferential direction of the dilution pipe, the water inlet slope has a plurality of nozzles arranged at equal intervals.

[0014] Furthermore, the inner diameter of the dilution pipe is larger than the inner diameter of the pulp feeding pipe.

[0015] Furthermore, a water inlet hole and an observation hole are sequentially opened on the circumferential side wall of the water inlet shell.

[0016] Furthermore, the angle between the water inlet slope and the axis of the pulp feed pipe is 40° to 50°.

[0017] Furthermore, the angle between the water inlet slope and the axis of the pulp feed pipe is 45°.

[0018] The beneficial effect of the utility model is that the utility model forms a water inlet cavity by arranging a water inlet housing, a pulp feed pipe and a dilution pipe coaxially, wherein the pulp feed pipe is used to communicate with the discharge port of the pulp washer, so that the pulp enters the dilution pipe through the pulp feed pipe after being pressed, and the water used to dilute the pulp flows from the inclined water inlet through hole into the dilution pipe to wash the pulp, so that the pulp is diluted, and the diluted pulp will fall vertically into the pulp storage tower. Compared with the existing pulp dilution device, the structure of the utility model is simpler, occupies less space, and is more suitable for two pulp washers with a small distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a pulp dilution device in the utility model;

[0020] Figure 2 for Figure 1 Sectional view of the AA plane;

[0021] Figure 3 for Figure 2 A magnified view of part A;

[0022] Figure 4 It is a partial structural schematic diagram of the nozzle and the dilution tube in the utility model;

[0023] Figure 5 for Figure 4 sectional view of .

[0024] Description of labels:

[0025] 1. Water inlet housing; 11. Water inlet hole; 12. Observation hole; 13. Water inlet pipe;

[0026] 2. Pulp feeding pipe;

[0027] 3. Dilution tube; 31. Water inlet slope; 311. Water inlet through hole;

[0028] 4. Water inlet chamber; 5. Nozzle. DETAILED DESCRIPTION

[0029] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0030] Please refer to Figure 1-Figure 5 A pulp dilution device comprises a coaxially arranged water inlet shell 1, a pulp feed pipe 2 and a dilution pipe 3; the dilution pipe 3 is connected with the discharge end of the pulp feed pipe 2; the water inlet end of the dilution pipe 3 has a water inlet slope 31 which gradually bulges outward in a direction away from the water inlet shell 1; the water inlet shell 1 is covered on the outer wall of the pulp feed pipe 2 and is surrounded by the water inlet slope 31 and the outer wall of the pulp feed pipe 2 to form a water inlet cavity 4 connected with the dilution pipe 3; a water inlet through hole 311 is arranged on the water inlet slope 31, and the water inlet through hole 311 is connected with a nozzle 5 with a water outlet arranged toward the axis of the dilution pipe 3, and the nozzle 5 is arranged in the inner cavity of the dilution pipe 3.

[0031] It can be understood that the utility model forms a water inlet chamber 4 by arranging the water inlet housing 1, the pulp feed pipe 2 and the dilution pipe 3 coaxially, wherein the pulp feed pipe 2 is used to communicate with the discharge port of the pulp washer, so that the pulp enters the dilution pipe 3 through the pulp feed pipe 2 after being pressed, and the water flow used to dilute the pulp flows from the nozzle 5 into the dilution pipe 3 to wash the pulp, so that the pulp is diluted. Compared with the existing pulp dilution device, the structure of the utility model is simpler, occupies less space, and is more suitable for two pulp washers with a small distance. Among them, the nozzle 5 is set to play a role in pressurizing the water flow to ensure that the water flow is mixed with the pulp.

[0032] In some embodiments, the angle between the water inlet slope 31 and the axis of the pulp feed pipe 2 is 40° to 50°. Further, the angle α between the water inlet slope 31 and the axis of the pulp feed pipe 2 is 45°, ensuring that the water flow can be sprayed onto the pulp.

[0033] In some embodiments, the axis of the nozzle 5 is perpendicular to the water inlet slope 31, so that the axis of the nozzle 5 and the axis of the pulp feed pipe 2 also form an angle of 45°, so that the water flow can be sprayed into the pulp after passing through the nozzle 5, ensuring the dilution effect of the water flow on the pulp.

[0034] In some embodiments, at least two nozzles 5 are sequentially arranged in the axial direction of the dilution pipe 3, and the nozzles 5 are sequentially arranged along the inclined direction of the water inlet slope 31 to achieve multi-angle water spraying on the pulp and ensure the water inlet amount and mixing uniformity.

[0035] In some embodiments, in the circumferential direction of the dilution pipe 3, a plurality of nozzles 5 are arranged at equal intervals on the water inlet slope 31. The more nozzles 5 there are, the greater the water inlet amount is, and the better the dilution effect of the pulp is.

[0036] In some embodiments, the inner diameter of the dilution pipe 3 is larger than the inner diameter of the pulp feed pipe 2 to form a water inlet slope 31 to ensure the dilution effect.

[0037] In some embodiments, a water inlet hole 11 and an observation hole 12 are sequentially opened on the circumferential side wall of the water inlet shell 1. The observation hole 12 can be used to observe the water inlet situation in the water inlet chamber 4. Specifically, two observation holes 12 are provided, and the two observation holes 12 are coaxially arranged. The outside of the water inlet hole 12 is connected to a water inlet pipe 13, and an acute angle is formed between the axis of the water inlet pipe 13 and the axis of the water inlet hole 11.

[0038] Please refer to Figure 1-Figure 5 , Embodiment 1 of the present utility model is:

[0039] A pulp dilution device comprises a coaxially arranged water inlet housing 1, a pulp feed pipe 2 and a dilution pipe 3; the dilution pipe 3 is connected to the discharge end of the pulp feed pipe 2; the water inlet end of the dilution pipe 3 has a water inlet slope 31 which gradually bulges outward in a direction away from the water inlet housing 1; the water inlet housing 1 is covered on the outer wall of the pulp feed pipe 2 and is surrounded by the water inlet slope 31 and the outer wall of the pulp feed pipe 2 to form a water inlet cavity 4 connected to the dilution pipe 3; the water inlet slope 31 is provided with a nozzle 5 whose water outlet is arranged toward the axis of the dilution pipe 3. The inner diameter of the dilution pipe 3 is larger than the inner diameter of the pulp feed pipe 2, and the two ends of the dilution pipe 3 and the feed pipe in the axial direction are mutually connected, that is, the pulp and water will be quickly discharged from the discharge port of the dilution pipe 3 after mixing.

[0040] In this embodiment, the angle between the water inlet slope 31 and the axis of the pulp feed pipe 2 is 45°, and the axis of the nozzle 5 is perpendicular to the water inlet slope 31, so that the axis of the nozzle 5 and the axis of the pulp feed pipe 2 also form an angle of 45°.

[0041] In this embodiment, two nozzles 5 are sequentially arranged in the axial direction of the dilution pipe 3, and the nozzles 5 are sequentially arranged along the inclined direction of the water inlet slope 31. In the circumferential direction of the dilution pipe 3, there are multiple nozzles 5 arranged at equal intervals on the water inlet slope 31. The number and size of the nozzles 5 are designed according to the concentration dilution ratio requirements of the process flow.

[0042] In this embodiment, a water inlet hole 11 and an observation hole 12 are sequentially opened on the circumferential side wall of the water inlet shell 1. The observation hole 12 can be used to observe the water inlet situation in the water inlet chamber 4. Specifically, two observation holes 12 are provided, and the two observation holes 12 are coaxially arranged. The outside of the water inlet hole 12 is connected to a water inlet pipe 13, and the axis of the water inlet pipe 13 forms an acute angle with the axis of the water inlet hole 11.

[0043] The working principle of this embodiment is:

[0044] The pulp feed pipe 2 is connected to the discharge end of the pulp washer, and the pulp enters the dilution pipe 3 through the pulp feed pipe 2. The water inlet shell 1 is connected to the water source through the water inlet hole 11. The water flows into the dilution pipe 3 through the nozzle 5 and mixes with the pulp. After the pulp and water are mixed, they will be discharged from the end of the dilution pipe 3 away from the feed pipe.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A pulp dilution device, characterized in that: It includes a water inlet housing, a pulp feed pipe and a dilution pipe which are coaxially arranged; The dilution pipe is connected to the discharge end of the pulp feeding pipe; The water inlet end of the dilution pipe has a water inlet slope which gradually convexes in a direction away from the water inlet housing; The water inlet housing is covered on the outer wall of the pulp feed pipe and is surrounded by the water inlet slope and the outer wall of the pulp feed pipe to form a water inlet cavity connected to the dilution pipe; The water inlet inclined surface is provided with a water inlet through hole.

2. A pulp dilution device according to claim 1, characterized in that: The water inlet through hole is provided with a nozzle whose water outlet is arranged toward the axis of the dilution tube.

3. A pulp dilution device according to claim 2, characterized in that: The axis of the nozzle and the water inlet slope are perpendicular to each other.

4. A pulp dilution device according to claim 2, characterized in that: In the axial direction of the dilution pipe, at least two nozzles are sequentially arranged, and the nozzles are sequentially arranged along the inclined direction of the water inlet slope.

5. A pulp dilution device according to claim 2, characterized in that: In the circumferential direction of the dilution pipe, the water inlet slope has a plurality of nozzles arranged at equal intervals.

6. A pulp dilution device according to claim 1, characterized in that: The inner diameter of the dilution pipe is larger than the inner diameter of the pulp feeding pipe.

7. A pulp dilution device according to claim 1, characterized in that: A water inlet hole and an observation hole are sequentially opened on the circumferential side wall of the water inlet shell.

8. A pulp dilution device according to claim 1, characterized in that: The angle between the water inlet slope and the axis of the pulp feed pipe is 40° to 50°.

9. A pulp dilution device according to claim 8, characterized in that: The angle between the water inlet slope and the axis of the pulp feed pipe is 45°.

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