Raw water softening equipment for water treatment in papermaking process

Abstract

The utility model discloses raw water softening equipment for water treatment in a papermaking process, which comprises a treatment box, a raw water cavity and a storage cavity are arranged in the treatment box, a softening cavity is arranged between the raw water cavity and the storage cavity, a plurality of mounting chambers are arranged in the softening cavity, one side of each mounting chamber is communicated with the inner cavity of the raw water cavity, and the other side of each mounting chamber is communicated with the inner cavity of the storage cavity. The other side of the mounting chamber is communicated with the inner cavity of the storage cavity, gate groups are arranged at the communication part of the mounting chamber and the inner cavity of the raw water cavity and the communication part of the mounting chamber and the inner cavity of the storage cavity, and a filling box is arranged in the mounting chamber. According to the raw water softening equipment for water treatment in the papermaking process, calcium ions and magnesium ions in raw water are replaced by the filled ion exchange resin so as to soften the raw water, and after the performance of the ion exchange resin is reduced due to long-time use of the ion exchange resin, the ion exchange resin layer can be washed by saline water so as to realize regeneration treatment; the method is convenient for long-term use of ion exchange resin, and is low in cost and high in efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment device technical field, specifically is a papermaking process water treatment raw water softening equipment. BACKGROUND

[0002] In the papermaking process, a large amount of water is needed to disperse fibers, wash pulp, and adjust pulp, etc., and the raw water is usually untreated water drawn from natural water sources. The raw water contains a large amount of calcium ions and magnesium ions. Direct use of raw water to wash pulp and adjust pulp will affect the quality of paper products. Therefore, the raw water is usually softened before papermaking to reduce the calcium ions and magnesium ions in the water.

[0003] Ion exchange method is a common soft water treatment method. It usually replaces calcium ions and magnesium ions in raw water with ion exchange resin. However, the ion exchange resin will reach saturation state after a period of use, resulting in gradually reduced replacement performance. Currently, the ion exchange resin is replaced to ensure raw water softening treatment. However, this method is costly and time-consuming, resulting in deficiencies in raw water treatment. SUMMARY

[0004] The utility model solves the technical problem of overcoming the existing defects and provides a papermaking process water treatment raw water softening equipment. The ion exchange resin filled in the equipment replaces calcium ions and magnesium ions in raw water to soften the raw water. When the ion exchange resin performance decreases after long-term use, the ion exchange resin layer can be regenerated by salt water flushing, which facilitates long-term use of the ion exchange resin. This method is low in cost and high in efficiency, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a papermaking process water treatment raw water softening equipment, comprising a treatment box, a raw water cavity and a storage cavity are arranged in the treatment box, and a softening cavity is arranged between the raw water cavity and the storage cavity, a plurality of installation rooms are arranged in the softening cavity, one side of the installation room is communicated with the inner cavity of the raw water cavity, the other side of the installation room is communicated with the inner cavity of the storage cavity, and gate groups are arranged at the communication parts of the installation room and the raw water cavity and the communication parts of the installation room and the storage cavity, a filling box is arranged in the installation room, ion exchange resin is filled in the filling box, and a liquid inlet pipe and a liquid outlet pipe communicated with the inner cavity of the filling box are installed at the top of the filling box.

[0006] As a preferred technical scheme of the utility model, a fixed plate is installed in the treatment box, the raw water cavity and the softening cavity are separated by the fixed plate, the storage cavity and the softening cavity are also separated by the fixed plate, a partition plate is fixed on the side surface of the fixed plate and located in the softening cavity, and the softening cavity is divided into a plurality of independently arranged installation rooms by the partition plate.

[0007] As a preferred technical scheme of the utility model, the fixed plate side away from the installation chamber side is fixed with an installation frame, and a communication hole is arranged on the position close to the installation frame on the fixed plate side, the gate group is arranged in the installation frame, and a filter screen is arranged on the side of the installation frame.

[0008] As a preferred technical scheme of the utility model, an installation port is arranged on the upper portion of the side of the installation frame, the gate group comprises a gate slidingly arranged in the installation port, a positioning frame is fixed on the position corresponding to the gate on the side of the processing box, a screw rod is threadedly connected to the side of the positioning frame, the bottom end of the screw rod is rotationally connected to the upper portion of the side of the gate, and a rotating disc is fixed to the top of the screw rod.

[0009] As a preferred technical scheme of the utility model, the side close to the raw water cavity of the filling box and the side close to the storage cavity of the filling box are both provided with an opening, and a protective screen is arranged in the opening, and an ear plate is fixed to the middle of the upper side of the filling box.

[0010] As a preferred technical scheme of the utility model, a water inlet pipe is arranged on the position close to the raw water cavity on the side of the processing box, and the water inlet pipe is in communication with the inner cavity of the raw water cavity, and a drain pipe is arranged on the position close to the storage cavity on the side of the processing box, and the drain pipe is in communication with the inner cavity of the storage cavity.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The water treatment raw water softening equipment in the papermaking process of the utility model is filled with ion exchange resin to replace calcium ions and magnesium ions in raw water, so that the raw water can be softened, and the ion exchange resin layer can be regenerated by salt water flushing when the performance of the ion exchange resin is reduced after long-term use, so that the ion exchange resin can be used for a long time, and the method has low cost and high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The drawings show the structure of the utility model;

[0014] Figure 2 The drawings show the structure of the utility model;

[0015] Figure 3 The drawings show the structure of the utility model;

[0016] Figure 4 The drawings show the structure of the utility model.

[0017] In the figure: 1 processing box, 2 raw water cavity, 3 storage cavity, 4 softening cavity, 5 fixed plate, 6 partition plate, 7 water inlet pipe, 8 drain pipe, 9 mounting frame, 10 filter screen, 11 gate, 12 positioning frame, 13 screw rod, 14 rotating disc, 15 filling box, 16 protective net, 17 liquid inlet pipe, 18 liquid outlet pipe, 19 lug plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a kind of raw water softening equipment in water treatment in papermaking process, including processing box 1, processing box 1 is provided with raw water cavity 2 and storage cavity 3, and raw water cavity 2 and storage cavity 3 are provided with softening cavity 4 between, processing box 1 side near the position of raw water cavity 2 is provided with the water inlet pipe 7 being communicated with raw water cavity 2 inner chamber, processing box 1 side near the position of storage cavity 3 is provided with the drain pipe 8 being communicated with storage cavity 3 inner chamber, raw water is transported to raw water cavity 2 in processing box 1 by water inlet pipe 7, and raw water in raw water cavity 2 flows towards storage cavity 3, raw water is softened in softening cavity 4 during flowing, reduce calcium ion and magnesium ion in raw water, softened water flows to and is stored in storage cavity 3, and raw water after softening is extracted from the present softening equipment by drain pipe 8 being arranged at storage cavity 3, to facilitate its use in papermaking process.

[0020] Softening cavity 4 is provided with a plurality of mounting chambers, one side of mounting chamber is communicated with raw water cavity 2 inner chamber, and the other side of mounting chamber is communicated with storage cavity 3 inner chamber, to facilitate raw water to flow in processing box 1, filling box 15 is arranged in mounting chamber, ion exchange resin is filled in filling box 15, preferably, ion exchange resin is sodium resin, after raw water flows into mounting chamber, filling box 15 in mounting chamber treats raw water, sodium ion in sodium resin replaces calcium ion and magnesium ion in raw water, reduces water hardness, to facilitate the softening treatment of raw water.

[0021] Gate assemblies are installed at the connection points between the installation chamber and the inner cavity of the raw water chamber 2, and between the installation chamber and the inner cavity of the storage chamber 3. The top of the filling box 15 is equipped with an inlet pipe 17 and a drain pipe 18 that communicate with its inner cavity. After prolonged use, when the ion exchange resin's replacement performance deteriorates, the gate assemblies are closed to isolate the installation chamber from the raw water chamber 2 and the storage chamber 3. Then, brine is injected into the filling box 15 through the inlet pipe 17 to regenerate the ion exchange resin, facilitating its long-term use. The cleaned brine, carrying calcium and magnesium ions, is discharged through the drain pipe 18. Preferably, a drainage pipe is installed at the drain pipe 18 to drain the cleaned brine. Cleaning the ion exchange resin with brine reduces the replacement frequency and saves costs.

[0022] A fixing plate 5 is installed in the treatment tank 1. The raw water chamber 2 and the softening chamber 4 are separated by the fixing plate 5. The storage chamber 3 and the softening chamber 4 are also separated by the fixing plate 5. The fixing plate 5 facilitates the independent setting and use of the raw water chamber 2, the storage chamber 3, and the softening chamber 4. A partition plate 6 located in the softening chamber 4 is fixed on the side of the fixing plate 5. The partition plate 6 divides the softening chamber 4 into several independently set installation chambers. The multiple installation chambers are set for replacement operations. When the filling box 15 in a certain installation chamber needs to be cleaned, the installation chamber can be temporarily closed, and the other installation chambers in the softening chamber 4 can perform the raw water softening operation first.

[0023] A mounting frame 9 is fixed to the side of the fixed plate 5 away from the installation chamber, and a connecting hole is opened on the side of the fixed plate 5 near the mounting frame 9. One side of the softening chamber 4 is connected to the raw water chamber 2 through the connecting hole, and the other side of the softening chamber 4 is connected to the storage chamber 3 through the connecting hole. The gate assembly is set inside the mounting frame 9, and a filter screen 10 is installed on the side of the mounting frame 9. The filter screen 10 is used to filter some of the particulate matter in the raw water. After the raw water is injected into the raw water chamber 2, the raw water can settle in the raw water chamber 2 to reduce the silt, suspended solids and other substances in the raw water.

[0024] The upper side of the mounting frame 9 has an installation opening. The gate assembly includes a gate 11 that is slidably installed in the installation opening. A positioning frame 12 is fixed on the side of the treatment box 1 at the position corresponding to the gate 11. A threaded cylinder is fixed on the side of the positioning frame 12. A screw 13 is threadedly connected to the inside of the threaded cylinder. The bottom end of the screw 13 is rotatably connected to the upper side of the gate 11. The rotatable connection is preferably made by a bearing assembly. A turntable 14 is fixed on the top of the screw 13. The screw 13 is rotated by the turntable 14, which drives the gate 11 to move within the mounting frame 9, so as to control the water flow rate within the mounting frame 9.

[0025] The side of the filling box 15 close to the raw water cavity 2 and the side of the filling box 15 close to the storage cavity 3 are both provided with openings, so that the raw water can flow into and out of the filling box 15, and a protective net 16 is installed in the opening, which is used for protecting the ion exchange resin and preventing the ion exchange resin from being carried out of the filling box 15 by the water flow.

[0026] The softening device replaces the calcium ions and magnesium ions in the raw water by the ion exchange resin arranged in the filling box, so that the raw water can be softened, and the ion exchange resin can be regenerated by washing the ion exchange resin layer with brine when the performance of the ion exchange resin is reduced after long-term use, so that the ion exchange resin can be used for a long time, and the method has low cost and high efficiency.

[0027] The un-disclosed parts in the utility model are all prior art, and the specific structure, material and working principle are not described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A raw water softening apparatus for water treatment in a papermaking process, comprising a treatment tank (1), characterized in that: The treatment box (1) is provided with a raw water chamber (2) and a storage chamber (3), and a softening chamber (4) is provided between the raw water chamber (2) and the storage chamber (3). The softening chamber (4) is provided with several installation chambers. One side of the installation chamber is connected to the inner cavity of the raw water chamber (2), and the other side of the installation chamber is connected to the inner cavity of the storage chamber (3). A gate group is provided at the connection between the installation chamber and the inner cavity of the raw water chamber (2) and at the connection between the installation chamber and the inner cavity of the storage chamber (3). A filling box (15) is provided in the installation chamber. The filling box (15) is filled with ion exchange resin. An inlet pipe (17) and a drain pipe (18) connected to the inner cavity of the filling box (15) are installed on the top of the filling box (15).

2. The raw water softening apparatus for treating water in a papermaking process according to claim 1, characterized by: The processing box (1) is equipped with a fixing plate (5). The raw water chamber (2) and the softening chamber (4) are separated by the fixing plate (5). The storage chamber (3) and the softening chamber (4) are also separated by the fixing plate (5). The side of the fixing plate (5) is fixed with a partition plate (6) located in the softening chamber (4), and the partition plate (6) divides the softening chamber (4) into several independently set installation chambers.

3. The raw water softening apparatus for treating water in a papermaking process according to claim 2, characterized by: The mounting plate (5) is fixed with a mounting frame (9) on the side away from the mounting chamber, and a connecting hole is provided on the side of the mounting plate (5) near the mounting frame (9). The gate assembly is set inside the mounting frame (9), and a filter screen (10) is installed on the side of the mounting frame (9).

4. The raw water softening apparatus for treating water in a papermaking process according to claim 3, characterized by: The mounting frame (9) has an installation opening on the upper side. The gate assembly includes a gate (11) that is slidably installed in the installation opening. The processing box (1) has a positioning frame (12) fixed on the side corresponding to the position of the gate (11). The positioning frame (12) is threadedly connected to a screw (13) on the side. The bottom end of the screw (13) is rotatably connected to the upper side of the gate (11). The top of the screw (13) is fixed with a turntable (14).

5. The raw water softening apparatus for treating water in a papermaking process according to claim 1, characterized by: The filling box (15) has an opening on the side near the original water chamber (2) and the side near the storage chamber (3), and a protective net (16) is installed in the opening. An ear plate (19) is fixed in the middle of the upper side of the filling box (15).

6. The raw water softening apparatus for treating water in a papermaking process according to claim 1, characterized by: The treatment box (1) is provided with an inlet pipe (7) that communicates with the inner cavity of the original water chamber (2) on the side near the original water chamber (2), and a drain pipe (8) that communicates with the inner cavity of the storage chamber (3) is provided on the side of the treatment box (1) near the storage chamber (3).

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