Coagulating sedimentation equipment for high-salinity wastewater treatment

Abstract

The utility model relates to the technical field of high-salinity chemical wastewater treatment, in particular to coagulating sedimentation equipment for high-salinity wastewater treatment, which comprises a secondary filtering area, a sedimentation inclined plate is fixedly mounted in the secondary filtering area, a driving chain is fixedly arranged above the sedimentation inclined plate, an impurity discharge port is formed in one side of the driving chain, and a water outlet is formed in the other side of the driving chain. The impurity discharge port is fixedly mounted above the secondary filtering area, a plurality of uniformly distributed scrapers are fixedly mounted on the driving chain, the scrapers slide on the upper surface of the precipitation inclined plate, a driving belt pulley is fixedly mounted on one side of the driving chain, and a driving belt sleeves the outer side of the driving belt pulley; under full aeration of the air blowing disc, generated bubbles can form strong turbulent flow in waste water, so that polyaluminum chloride is more uniformly dispersed in each area of the waste water, the waste water at each part can be ensured to be in full contact with a medicament, the medicament can be uniformly dispersed in the waste water, the medicament can be uniformly dispersed in the waste water, and the medicament can be uniformly dispersed in the waste water. The coagulation reaction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-salt chemical wastewater treatment, in particular to a coagulation and sedimentation device for high-salt wastewater treatment. Background Art

[0002] With the development of industry, the amount of high-salt wastewater generated is increasing. If high-salt wastewater is discharged directly without effective treatment, it will cause serious pollution to the environment. In the treatment of high-salt wastewater, coagulation and sedimentation is one of the commonly used treatment methods.

[0003] Existing coagulation and sedimentation equipment has some problems when treating high-salt wastewater. Insufficient stirring cannot fully integrate the impurities in the sewage with the coagulant, resulting in poor sedimentation effect. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a coagulation and sedimentation device for treating high-salt wastewater to solve the problem of insufficient coagulation reaction.

[0005] Based on the above purpose, the utility model provides a coagulation and sedimentation equipment for treating high-salt wastewater, comprising: a secondary filtration area, a sedimentation inclined plate is fixedly installed inside the secondary filtration area, a drive chain is fixedly arranged above the sedimentation inclined plate, an impurity discharge port is arranged on one side of the drive chain, the impurity discharge port is fixedly installed above the secondary filtration area, a plurality of evenly distributed scrapers are fixedly installed on the drive chain, the scrapers slide on the upper surface of the sedimentation inclined plate, a drive pulley is fixedly installed on one side of the drive chain, a drive belt is sleeved on the outer side of the drive pulley, and the drive belt is sleeved on the driving end of the first servo motor away from the drive pulley;

[0006] A number of evenly distributed air blowing discs are fixedly installed at the bottom end of the secondary filtration area. The air blowing discs are connected in series to the secondary drug inlet pipe, and the other end of the secondary drug inlet pipe is fixedly installed on the secondary drug adding box.

[0007] As an optional embodiment, a primary medicine dosing box is fixedly installed on one side of the secondary medicine dosing box, and is also fixedly installed on one side of the primary filtration area. The secondary medicine dosing box and the primary medicine dosing box are fixedly connected to an air pump through a pipeline.

[0008] As an optional embodiment, a first-level drug inlet pipe is fixedly connected to one side of the first-level drug dosing box, and a spray head is fixedly connected to one end of the first-level drug inlet pipe away from the first-level drug dosing box. The spray head is located inside the first-level filtration area.

[0009] As an optional embodiment, the bottom end of the primary filtration area is rotatably connected to a screw auger, and the end of the screw auger away from the spray head is fixedly connected to a second servo motor.

[0010] As an optional embodiment, a mud discharge port is fixedly connected to the outside of the primary filtration area and below the second servo motor.

[0011] As an optional embodiment, a baffle is fixedly connected to one side of the secondary filter area above the primary filter area, and a number of evenly distributed transition grooves are opened on one side of the baffle and located on the secondary filter area. A drain outlet is fixedly installed on the outside of the secondary filter area.

[0012] As an optional embodiment, a water suction pump is fixedly installed above the baffle, and one end of the water suction pump is fixedly connected to a water inlet pipe.

[0013] As an optional embodiment, the other end of the water inlet pipe is fixedly connected to a filter head, and the filter head penetrates into the first-level filter area. The other end of the water suction pump is fixedly connected to a water outlet pipe, and the water outlet pipe penetrates into the first-level filter area.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model uses a secondary drug inlet pipe under the pressure of an air pump to spray polyaluminium chloride into the wastewater inside the secondary filtration area through an aeration disk. When the aeration disk is fully aerated, the bubbles generated can form a strong turbulence in the wastewater, so that the polyaluminium chloride is more evenly dispersed in various areas of the wastewater, ensuring that the wastewater in each part can fully contact with the reagent, thereby improving the effect of the coagulation reaction.

[0016] 2. The secondary dosing box and the primary dosing box are used to remove impurities in different areas of the coagulation and sedimentation equipment to avoid mutual interference between different types of impurities. The two areas can independently control the reaction conditions, such as stirring speed, residence time, etc., to provide the most suitable environment for the treatment of precipitated and suspended impurities, making the reaction more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is an overall schematic diagram of the coagulation and sedimentation equipment of an embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of the top view of the coagulation and sedimentation equipment according to an embodiment of the utility model;

[0020] Figure 3 This is a side structural diagram of the coagulation and sedimentation equipment according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the first-stage sedimentation coagulation sedimentation equipment according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the secondary sedimentation of the coagulation sedimentation equipment according to an embodiment of the present utility model.

[0023] The following are marked in the figure:

[0024] 1. Secondary filtration area; 2. Suction pump; 3. Primary filtration area; 4. Impurity discharge port; 101. First servo motor; 102. Drive belt; 103. Drive chain; 104. Scraper; 105. Air blower; 106. Drain port; 107. Drive pulley; 108. Secondary dosing box; 109. Primary dosing box; 110. Air pump; 111. Primary drug inlet pipe; 112. Spray head; 113. Sedimentation ramp; 114. Secondary drug inlet pipe; 201. Water outlet pipe; 202. Water inlet pipe; 203. Transition trough; 204. Baffle; 205. Filter head; 301. Auger; 302. Second servo motor; 303. Mud discharge port. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] like Figure 1-Figure 5As shown, a coagulation and sedimentation equipment for treating high-salt wastewater includes: a secondary filtration area 1, a sedimentation inclined plate 113 is fixedly installed inside the secondary filtration area 1, a drive chain 103 is fixedly installed above the sedimentation inclined plate 113, an impurity discharge port 4 is provided on one side of the drive chain 103, and the impurity discharge port 4 is fixedly installed above the secondary filtration area 1, a plurality of evenly distributed scrapers 104 are fixedly installed on the drive chain 103, and the scrapers 104 slide on the upper surface of the sedimentation inclined plate 113, a drive pulley 107 is fixedly installed on one side of the drive chain 103, a drive belt 102 is sleeved on the outer side of the drive pulley 107, and the drive belt 102 is sleeved on the drive end of the first servo motor 101 away from the drive pulley 107;

[0028] Several evenly distributed air blowing discs 105 are fixedly installed at the bottom end of the secondary filtration area 1. The air blowing discs 105 are connected in series to the secondary drug inlet pipe 114. The other end of the secondary drug inlet pipe 114 is fixedly installed on the secondary drug adding box 108.

[0029] In this way, polyaluminium chloride is added through the secondary dosing box 108, and the secondary drug inlet pipe 114 sprays polyaluminium chloride into the wastewater inside the secondary filtration zone 1 through the air blower 105 under the pressure of the air pump 110. When the air blower 105 is fully aerated, the bubbles generated can form strong turbulence in the wastewater, so that polyaluminium chloride is more evenly dispersed in various areas of the wastewater, ensuring that the wastewater in each part can fully contact with the agent, thereby improving the effect of the coagulation reaction. At the same time, the scraper 104 is driven to rotate by the first servo motor 101, and the coagulated suspended impurities are scraped into the impurity discharge port 4 through the sedimentation inclined plate 113 for discharge. When the scraper 104 rotates, the wastewater in the secondary filtration zone 1 is stirred for the second time, thereby improving the fusion effect of polyaluminium chloride and effectively avoiding insufficient fusion and impurity removal.

[0030] As an optional implementation, Figure 1-Figure 5 As shown, a primary dosing box 109 is fixedly installed on one side of the secondary dosing box 108, and is also fixedly installed on one side of the primary filtration area 3. The secondary dosing box 108 and the primary dosing box 109 are fixedly connected to an air pump 110 through a pipeline;

[0031] A first-level drug inlet pipe 111 is fixedly connected to one side of the first-level drug adding box 109 , and a drug spraying head 112 is fixedly connected to one end of the first-level drug inlet pipe 111 away from the first-level drug adding box 109 . The drug spraying head 112 is located inside the first-level filtering area 3 .

[0032] In this way, the secondary dosing box 108 and the primary dosing box 109 are used to remove impurities in different areas of the coagulation and sedimentation equipment to avoid mutual interference between different types of impurities. The two areas can independently control the reaction conditions, such as stirring speed, residence time, etc., to provide the most suitable environment for the treatment of precipitated and suspended impurities, making the reaction more complete.

[0033] As an optional implementation, Figure 1-Figure 5 As shown, the bottom end of the primary filtration area 3 is rotatably connected to an auger 301, and the end of the auger 301 away from the spray head 112 is fixedly connected to a second servo motor 302;

[0034] A mud discharge port 303 is fixedly connected to the outside of the primary filtration area 3 and below the second servo motor 302;

[0035] A baffle 204 is fixedly connected to one side of the secondary filter area 1 above the primary filter area 3. A plurality of evenly distributed transition grooves 203 are opened on one side of the baffle 204 and located on the secondary filter area 1. A drain outlet 106 is fixedly installed on the outside of the secondary filter area 1.

[0036] A water suction pump 2 is fixedly installed above the baffle 204, and one end of the water suction pump 2 is fixedly connected to a water inlet pipe 202;

[0037] The other end of the water inlet pipe 202 is fixedly connected to a filter head 205 , which penetrates into the primary filter area 3 . The other end of the water suction pump 2 is fixedly connected to a water outlet pipe 201 , which penetrates into the primary filter area 3 .

[0038] In this way, the first-level dosing box 109 is used to add medicine to the first-level filter area 3, and the second servo motor 302 drives the auger 301 to make the auger 301 stir the sewage in the first-level filter area 3, so that the sewage is fully integrated with the coagulant, and the impurities are quickly precipitated. After the sewage is continuously added, the impurities are blocked by the baffle 204. The sewage with blocked impurities spreads to the upper side through the baffle 204 and flows into the secondary filter area 1 through the transition trough 203. In order to improve the impurity removal efficiency, the water suction pump 2 is started to discharge the filtered sewage into the second-level filter area 1 through the filter head 205 for secondary impurity removal. The precipitated impurity sludge is discharged to the outside of the equipment through the mud discharge port 303 through the auger 301.

[0039] In this embodiment, if Figure 1-Figure 5As shown, the first-level filtration zone 3 is dosed with drugs through the first-level drug-dosing box 109, and the second servo motor 302 drives the auger 301, so that the auger 301 stirs the sewage in the first-level filtration zone 3, so that the sewage is fully integrated with the coagulant and the impurities are quickly precipitated. After the sewage is continuously added, the impurities are blocked by the baffle 204. The sewage with blocked impurities spreads to the upper side through the baffle 204 and flows into the secondary filtration zone 1 through the transition trough 203. In order to improve the impurity removal efficiency, the water suction pump 2 is started to discharge the filtered sewage into the second-level filtration zone 1 through the filter head 205 for secondary impurity removal. The precipitated impurity sludge is discharged to the outside of the equipment through the mud discharge port 303 through the auger 301. The second-level drug-dosing box 108 and the first-level drug-dosing box 109 fixed on the outside respectively remove impurities in different areas of the coagulation and sedimentation equipment, effectively avoiding mutual interference between different types of impurities. The two areas can independently control reaction conditions, such as stirring speed, residence time, etc., to provide the most suitable environment for the treatment of precipitation and suspended impurities, making the reaction more complete. Polyaluminum chloride is added through the secondary dosing box 108, and under the pressure of the air pump 110, the secondary drug inlet pipe 114 sprays the polyaluminum chloride into the wastewater inside the secondary filtration zone 1 through the aeration disk 105. When the aeration disk 105 is fully aerated, the bubbles generated can form strong turbulence in the wastewater, so that the polyaluminum chloride is more evenly dispersed in various areas of the wastewater, ensuring that the wastewater in each part can fully contact with the reagent, thereby improving the effect of the coagulation reaction. At the same time, the scraper 104 is driven to rotate by the first servo motor 101, and the coagulated suspended impurities are scraped into the impurity discharge port 4 through the sedimentation inclined plate 113 for discharge. While the scraper 104 is rotating, the wastewater in the secondary filtration zone 1 is simultaneously stirred for the second time, thereby improving the fusion effect of the polyaluminum chloride and effectively avoiding insufficient fusion and impurity removal.

[0040] Those skilled in the art will understand that the discussion of any of the above embodiments is merely illustrative and is not intended to limit the scope of the present invention to these examples. Within the spirit and principles of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and many other variations exist in the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coagulation and sedimentation device for treating high-salt wastewater, comprising: The secondary filtration area (1) is characterized in that a sedimentation inclined plate (113) is fixedly installed inside the secondary filtration area (1), a drive chain (103) is fixedly installed above the sedimentation inclined plate (113), an impurity discharge port (4) is provided on one side of the drive chain (103), the impurity discharge port (4) is fixedly installed above the secondary filtration area (1), a plurality of evenly distributed scrapers (104) are fixedly installed on the drive chain (103), the scrapers (104) slide on the upper surface of the sedimentation inclined plate (113), a drive pulley (107) is fixedly installed on one side of the drive chain (103), a drive belt (102) is sleeved on the outer side of the drive pulley (107), and the drive belt (102) is sleeved on the driving end of the first servo motor (101) on the side away from the drive pulley (107); A plurality of evenly distributed air-blowing discs (105) are fixedly mounted on the bottom end of the secondary filtration zone (1). The air-blowing discs (105) are connected in series to a secondary drug inlet pipe (114). The other end of the secondary drug inlet pipe (114) is fixedly mounted on a secondary drug adding box (108).

2. A coagulation and sedimentation equipment for treating high-salt wastewater according to claim 1, characterized in that: A primary drug dosing box (109) is fixedly installed on one side of the secondary drug dosing box (108), and is also fixedly installed on one side of the primary filtration area (3). The secondary drug dosing box (108) and the primary drug dosing box (109) are fixedly connected to an air pump (110) via a pipeline.

3. A coagulation and sedimentation equipment for treating high-salt wastewater according to claim 2, characterized in that: A first-level drug inlet pipe (111) is fixedly connected to one side of the first-level drug dosing box (109), and a drug spraying head (112) is fixedly connected to one end of the first-level drug inlet pipe (111) away from the first-level drug dosing box (109). The drug spraying head (112) is located inside the first-level filtering area (3).

4. A coagulation and sedimentation equipment for treating high-salt wastewater according to claim 3, characterized in that: The bottom end of the primary filtering area (3) is rotatably connected to an auger (301), and one end of the auger (301) away from the spray head (112) is fixedly connected to a second servo motor (302).

5. A coagulation and sedimentation equipment for treating high-salt wastewater according to claim 4, characterized in that: A mud discharge port (303) is fixedly connected to the outside of the primary filtering area (3) and located below the second servo motor (302).

6. The coagulation and sedimentation equipment for treating high-salt wastewater according to claim 2, characterized in that: A baffle (204) is fixedly connected to one side of the secondary filter area (1) above the primary filter area (3); a plurality of evenly distributed transition grooves (203) are provided on one side of the baffle (204) and located on the secondary filter area (1); and a drain outlet (106) is fixedly installed on the outside of the secondary filter area (1).

7. The coagulation and sedimentation equipment for treating high-salt wastewater according to claim 6, characterized in that: A water suction pump (2) is fixedly installed above the baffle (204), and one end of the water suction pump (2) is fixedly connected to a water inlet pipe (202).

8. The coagulation and sedimentation equipment for treating high-salt wastewater according to claim 7, characterized in that: The other end of the water inlet pipe (202) is fixedly connected to a filter head (205), and the filter head (205) penetrates into the first-level filter area (3). The other end of the water suction pump (2) is fixedly connected to a water outlet pipe (201), and the water outlet pipe (201) penetrates into the first-level filter area (3).

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