Sludge spinning conditioning mixer method

Abstract

The invention belongs to the technical field of sludge pretreatment, and particularly relates to a sludge rotary excitation tempering mixer method. The mixer comprises a feeding hole, a mixing pipe, a ring pipe, a nozzle, an adjusting pipe, a discharging hole, a valve I, a valve II, a valve III, a high-pressure water pump, an electric control box, a box body, an access hole, a diluent inlet, a slag discharge hole, an overflow pipe, a floating ball valve, a liquid suction pipe and a filter element. The problems that traditional pretreatment equipment is large in occupied area during stirring, low in efficiency, large in flow resistance of a bent pipe partition plate, large in plate corner silt accumulation and dredging difficulty, complex in design of a mud-liquid fusion reaction area and the like are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge pretreatment, and in particular relates to a sludge vortex conditioning mixer method. Background Art

[0002] With the improvement of residents' living standards and the acceleration of industrialization and urbanization, the difficulty of water purification in residential areas has gradually increased. In the field of sludge pretreatment technology, there are common problems such as high sludge moisture content, large volume, various toxic and harmful substances, and breeding of bacteria, viruses and parasites. At the same time, due to the different human activities in living areas, commercial areas, industrial areas, and development areas, the composition of sludge from different sources is significantly different, making it difficult to use a unified pretreatment method for conditioning. For example, in our company's sludge high-temperature and high-pressure hydrothermal carbonization treatment technology process, we are faced with the situation that the moisture content of domestic sludge and industrial sludge collected at the front end is very different, and the traditional pretreatment equipment for adjusting the moisture content of sludge usually uses a stirring device with low speed stirring, or uses a complex reversing circuit set in the box wall or pipeline, or uses some baffles with different reaction zones to achieve the purpose of adjusting the properties of sludge, but these traditional equipment usually have the disadvantages of large footprint, difficulty in dredging dead corners, and low mixing efficiency. Therefore, a device or facility that can solve the above shortcomings is needed. Summary of the invention

[0003] The purpose of the present invention is to expand the sludge pretreatment technology and provide a sludge vortex conditioning mixer method, which can efficiently and quickly mix the sludge with the dilution liquid and condition the sludge to meet the feed requirements of the subsequent process, so as to solve the problems of traditional pretreatment equipment such as large space and low efficiency of stirring, large flow resistance of curved pipe baffles, silt accumulation at the plate corners and difficulty in silting, and complex design of the mud-liquid fusion reaction zone.

[0004] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0005] A sludge vortex conditioning mixer method, characterized in that: the mixer comprises a feed port (1), a mixing tube (2), a ring tube (3), a nozzle (4), a regulating tube (5), a discharge port (6), a valve one (7), a valve two (8), a valve three (9), a high-pressure water pump (10), an electric control box (11), a box body (12), a maintenance port (13), a dilution liquid inlet (14), a slag discharge port (15), an overflow pipe (16), a float valve (17), a liquid suction pipe (18), and a filter element (19), wherein.

[0006] The feed port (1), the mixing tube (2), and the discharge port (6) are coaxially connected together; the diameter of the mixing tube (2) is larger than that of the feed port (1) and the discharge port (6); the annular tube (3) is arranged in layers outside the mixing tube (2); each annular tube (3) is evenly distributed with the nozzles (4); the nozzles (4) connect the annular tube (3) and the mixing tube (2); the regulating tube (5) is obliquely arranged between the end of the mixing tube (2) and the connection with the discharge port (6); the feed port (1), the mixing tube (2), the discharge port (6), the annular tube (3), the nozzles (4), and the regulating tube (5) are connected to form an integral pipeline structure in the above arrangement.

[0007] The high-pressure water pump (10) is installed on the upper surface of the box (12), the water inlet of the high-pressure water pump (10) is connected to the liquid suction pipe (18), and the liquid suction pipe (18) is connected to the filter element (19) for sucking and pumping the liquid medium in the box (12).

[0008] The valve 1 (7) is connected to the annular pipe (3) and is used to control the flow of the annular pipe (3), and the other side is connected to the water outlet of the high-pressure water pump (10).

[0009] The second valve (8) is connected to the regulating pipe (5) and is used to control the flow rate of the regulating pipe (5), and the other side is connected to the water outlet of the high-pressure water pump (10).

[0010] The valve three (9) is connected to the overflow pipe (16), and the overflow pipe (16) is connected to the box (12). The valve three (9) is used for pressure regulation and overflow, and the other side is connected to the water outlet of the high-pressure water pump (10).

[0011] The electric control box (11) is mounted on the upper surface of the box body (12) and is used to programmably control the opening and closing angles of valve one (7), valve two (8), and valve three (9).

[0012] The diluent inlet (14) is installed on the upper side of the box body (12), and the float valve (17) automatically replenishes the liquid according to the liquid level in the box.

[0013] The inspection port (13) is installed on the upper surface of the box body (12) and is used for inspection, maintenance and installation of other auxiliary valve bodies such as a reagent valve and a breathing valve. The slag discharge port (15) is installed on the lower side of the box body (12) and is used for discharging sediment or residue at the bottom of the box body (12).

[0014] When the sludge continuously enters the mixing pipe (2) from the feed port (1), the high-pressure water pump (10) starts working, and the diluent in the suction box (12) is sprayed into the mixing pipe (2) through the ring pipe (3), the nozzle (4), and the regulating pipe (5), and the mixed liquid flows out from the discharge port (6), thereby achieving the purpose of mixing and tempering the two liquid media.

[0015] According to this preferred embodiment, the evenly distributed nozzles (4) of the first layer of the annular tube (3) are connected and entered tangentially along the tube wall of the mixing tube (2) in a clockwise direction, so that the injected diluent forms a forward swirl; the evenly distributed nozzles (4) of the second layer of the annular tube (3) are connected and entered tangentially along the tube wall of the mixing tube (2) in a counterclockwise direction, so that the injected diluent forms a reverse swirl; the nozzles (4) of each layer of the annular tube (3) are arranged in a forward and reverse staggered manner according to the layer, so that the fluid in the mixing tube (2) forms a forward and reverse swirl.

[0016] According to this preferred embodiment, the valve 1 (7) and the valve 2 (8) can control the pumping flow of the annular pipe (3) and the regulating pipe (5). When the flow of the control valve 1 (7) increases and the flow of the control valve 2 (8) decreases, the fluid shear force generated by the positive and negative cyclonic flow in the mixing pipe (2) increases, the particle integrity of the sludge passing through the mixing pipe (2) decreases, and the remaining small amount of diluent is mixed into the sludge at the end of the mixing pipe (2) through the regulating pipe (5). The mixing process is mainly to disperse the large sludge with low water content. On the contrary, when the flow of the control valve 1 (7) decreases and the flow of the control valve 2 (8) increases, the mixing process is carried out. When the pressure increases, the fluid shear force generated by the forward and reverse cyclonic flows in the mixing tube (2) is reduced, the particle integrity of the sludge passing through the mixing tube (2) is improved, and the remaining large amount of diluent is mixed into the sludge at the end of the mixing tube (2) through the regulating tube (5). The mixing process is mainly to maintain a loose sludge state with a high water content; that is, the method can control the cyclonic flow situation in the mixing tube (2) according to the characteristics of the incoming sludge, form an appropriate fluid shear force, make the particle integrity of the sludge reach the optimal state, promote the generation of extracellular polymers, and achieve the best mixing efficiency, so as to meet the material requirements of the subsequent processing process.

[0017] The advantages of the present invention are:

[0018] 1. The sludge inlet and outlet are coaxially arranged, with high conveying efficiency.

[0019] 2. There are no partitions in the pipe, no dead corners for dredging, and low flow resistance.

[0020] 3. No mechanical stirring is required, the structure is simple to manufacture, and the subsequent maintenance cost is low.

[0021] 4. The equipment has good integrity, integrated design and small footprint.

[0022] 5. The shear force of the fluid in the tube is controllable and the mixing efficiency is high.

[0023] 6. Suitable for adjustment of sludge from different sources, the process is highly adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The main structure diagram of a sludge vortex conditioning mixer method is shown in the figure.

[0025] Figure 2 A schematic cross-sectional view of a sludge vortex conditioning mixer method.

[0026] Figure 3 It is a cross-sectional diagram of the annular nozzle arrangement of the mixing tube. DETAILED DESCRIPTION

[0027] Referring to the attached drawings, a sludge vortex conditioning mixer method is characterized in that: the mixer comprises a feed port (1), a mixing tube (2), a ring tube (3), a nozzle (4), a regulating tube (5), a discharge port (6), a valve 1 (7), a valve 2 (8), a valve 3 (9), a high-pressure water pump (10), an electric control box (11), a box body (12), an inspection port (13), a dilution liquid inlet (14), a slag discharge port (15), an overflow pipe (16), a float valve (17), a liquid suction pipe (18), and a filter element (19), wherein:

[0028] The feed port (1), the mixing tube (2), and the discharge port (6) are coaxially connected together; the diameter of the mixing tube (2) is larger than that of the feed port (1) and the discharge port (6); the annular tube (3) is arranged in layers outside the mixing tube (2); each annular tube (3) is evenly distributed with the nozzles (4); the nozzles (4) connect the annular tube (3) and the mixing tube (2); the regulating tube (5) is obliquely arranged between the end of the mixing tube (2) and the connection with the discharge port (6); the feed port (1), the mixing tube (2), the discharge port (6), the annular tube (3), the nozzles (4), and the regulating tube (5) are connected to form an integral pipeline structure in the above arrangement.

[0029] The high-pressure water pump (10) is installed on the upper surface of the box (12), the water inlet of the high-pressure water pump (10) is connected to the liquid suction pipe (18), and the liquid suction pipe (18) is connected to the filter element (19) for sucking and pumping the liquid medium in the box (12).

[0030] The valve 1 (7) is connected to the annular pipe (3) and is used to control the flow of the annular pipe (3), and the other side is connected to the water outlet of the high-pressure water pump (10).

[0031] The second valve (8) is connected to the regulating pipe (5) and is used to control the flow rate of the regulating pipe (5), and the other side is connected to the water outlet of the high-pressure water pump (10).

[0032] The valve three (9) is connected to the overflow pipe (16), and the overflow pipe (16) is connected to the box (12). The valve three (9) is used for pressure regulation and overflow, and the other side is connected to the water outlet of the high-pressure water pump (10).

[0033] The electric control box (11) is mounted on the upper surface of the box body (12) and is used to programmably control the opening and closing angles of valve one (7), valve two (8), and valve three (9).

[0034] The diluent inlet (14) is installed on the upper side of the box body (12), and the float valve (17) automatically replenishes the liquid according to the liquid level in the box.

[0035] The inspection port (13) is installed on the upper surface of the box body (12) and is used for inspection, maintenance and installation of other auxiliary valve bodies such as a reagent valve and a breathing valve. The slag discharge port (15) is installed on the lower side of the box body (12) and is used for discharging sediment or residue at the bottom of the box body (12).

[0036] When the sludge continuously enters the mixing pipe (2) from the feed port (1), the high-pressure water pump (10) starts working, and the diluent in the suction box (12) is sprayed into the mixing pipe (2) through the ring pipe (3), the nozzle (4), and the regulating pipe (5), and the mixed liquid flows out from the discharge port (6), thereby achieving the purpose of mixing and tempering the two liquid media.

[0037] Furthermore, the evenly distributed nozzles (4) of the first layer of the annular tube (3) are connected and entered tangentially along the tube wall of the mixing tube (2) in a clockwise direction, so that the injected diluent forms a forward swirl; the evenly distributed nozzles (4) of the second layer of the annular tube (3) are connected and entered tangentially along the tube wall of the mixing tube (2) in a counterclockwise direction, so that the injected diluent forms a reverse swirl; the nozzles (4) of each layer of the annular tube (3) are arranged in a forward and reverse staggered manner according to the layer, so that the fluid in the mixing tube (2) forms a forward and reverse swirl.

[0038] Furthermore, the valve 1 (7) and the valve 2 (8) can control the pumping flow of the annular pipe (3) and the regulating pipe (5). When the flow of the control valve 1 (7) increases and the flow of the control valve 2 (8) decreases, the fluid shear force generated by the positive and negative cyclonic flow in the mixing pipe (2) increases, the particle integrity of the sludge passing through the mixing pipe (2) decreases, and the remaining small amount of diluent is mixed into the sludge at the end of the mixing pipe (2) through the regulating pipe (5). The mixing process is mainly to disperse the large sludge with low water content. On the contrary, when the flow of the control valve 1 (7) decreases and the flow of the control valve 2 (8) increases, the mixing process is carried out. When the pressure is large, the fluid shear force generated by the forward and reverse cyclonic flows in the mixing tube (2) is reduced, the particle integrity of the sludge passing through the mixing tube (2) is improved, and the remaining large amount of diluent is mixed into the sludge at the end of the mixing tube (2) through the regulating tube (5). The mixing process is mainly to maintain a loose sludge state with a high water content; that is, the method can control the cyclonic flow situation in the mixing tube (2) according to the characteristics of the incoming sludge, form an appropriate fluid shear force, make the particle integrity of the sludge reach the optimal state, promote the generation of extracellular polymers, and achieve the best mixing efficiency, so as to meet the material requirements of the subsequent treatment process.

[0039] Compared with the prior art, the present invention has the following advantages: the sludge inlet and outlet are coaxially arranged, and the conveying efficiency is high; there is no partition in the pipe, no dead corner for dredging, and the flow resistance is low; no mechanical stirring is required, the structure is simple to manufacture, and the subsequent maintenance cost is low; the equipment has good integrity, integrated design, and small footprint; the shear force of the fluid in the pipe is controllable and the mixing efficiency is high; it is suitable for the adjustment of sludge from different sources, and the process is highly adaptable.

[0040] In addition, the six-layer annular tube (3) is not limited to being arranged as shown in the schematic diagram, but can be arranged in multiple layers; and the mixing tube (2) is not limited to being placed vertically, but can also be placed horizontally; the inside and outside of the box (12) are not limited to the main structure schematic diagram of this specification, and according to different application scenarios or different processes at the front end and the back end, the box (12) structure can be further equipped with auxiliary equipment and facilities such as a pH adjustment system, a dosing system, and a real-time monitoring system to expand the various application scenarios of the present invention.

[0041] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. Therefore, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. A sludge vortex conditioning mixer method, characterized in that: The mixer includes a feed port, a mixing tube, a ring tube, a nozzle, a regulating tube, a discharge port, a valve 1, a valve 2, a valve 3, a high-pressure water pump, an electric control box, a box body, a maintenance port, a diluent inlet, a slag discharge port, an overflow pipe, a float valve, a liquid suction tube, and a filter element, wherein: The feed port, the mixing tube, and the discharge port are coaxially connected together, the diameter of the mixing tube is larger than the feed port and the discharge port, the annular tubes are arranged in layers outside the mixing tube, each annular tube is evenly distributed with the nozzles, the nozzles connect the annular tubes and the mixing tubes together, the regulating tube is obliquely arranged between the end of the mixing tube and the discharge port, and the feed port, the mixing tube, the discharge port, the annular tube, the nozzles, and the regulating tube are connected to form an integral pipeline structure according to the above arrangement; The high-pressure water pump is installed on the upper surface of the box, the water inlet of the high-pressure water pump is connected to the liquid suction pipe, and the liquid suction pipe is connected to the filter element for sucking and pumping the liquid medium in the box; The valve one is connected to the annular pipe to control the flow of the annular pipe, and the other side is connected to the water outlet of the high-pressure water pump; The second valve is connected to the regulating pipe to control the flow of the regulating pipe, and the other side is connected to the water outlet of the high-pressure water pump; The valve three is connected to the overflow pipe, the overflow pipe is connected to the box, the valve three is used for pressure regulation and overflow, and the other side is connected to the water outlet of the high-pressure water pump; The electric control box is installed on the upper surface of the box body and is used to programmably control the opening and closing angles of valve one, valve two and valve three; The diluent inlet is installed on the upper side of the box body, and the float valve automatically replenishes the liquid according to the liquid level in the box; The inspection port is installed on the upper surface of the box body, and is used for inspection, maintenance, and installation of other auxiliary valve bodies such as the agent valve and the breathing valve, etc. The slag discharge port is installed on the lower side of the box body, and is used for discharging sediment or residue at the bottom of the box body; When the sludge continuously enters the mixing tube from the feed port, the high-pressure water pump starts working, and the diluent in the suction box is sprayed into the mixing tube through the ring pipe, nozzle and regulating pipe, and the mixed liquid flows out from the discharge port, achieving the purpose of mixing and tempering the two liquid media.

2. A sludge vortex conditioning mixer method according to claim 1, characterized in that: The evenly distributed nozzles of the first layer of annular tubes are connected and tangentially entered along the tube wall of the mixing tube in a clockwise direction, so that the injected diluent forms a forward swirl; the evenly distributed nozzles of the second layer of annular tubes are connected and tangentially entered along the tube wall of the mixing tube in a counterclockwise direction, so that the injected diluent forms a reverse swirl; the nozzles of each layer of annular tubes are arranged in a forward and reverse staggered manner according to the layer, so that the fluid in the mixing tube forms a forward and reverse swirl.

3. A sludge vortex conditioning mixer method according to claim 1, characterized in that: The valves 1 and 2 can control the flow rates of the annular tube and the regulating tube. When the flow rate of the control valve 1 is increased and the flow rate of the control valve 2 is decreased, the fluid shear force generated by the positive and negative vortexes in the mixing tube is increased, the particle integrity of the sludge passing through the mixing tube is reduced, and the remaining small amount of diluent is mixed into the sludge at the end of the mixing tube through the regulating tube, and the mixing process is mainly to disperse the large sludge with low water content; on the contrary, when the flow rate of the control valve 1 is reduced and the flow rate of the control valve 2 is increased, the fluid shear force generated by the positive and negative vortexes in the mixing tube is reduced, the particle integrity of the sludge passing through the mixing tube is improved, and the remaining large amount of diluent is mixed into the sludge at the end of the mixing tube through the regulating tube, and the mixing process is mainly to maintain the loose sludge with high water content; that is, the method can control the vortex situation in the mixing tube according to the characteristics of the incoming sludge, form appropriate fluid shear force, make the particle integrity of the sludge reach the optimal state, promote the generation of extracellular polymers, and achieve the best mixing efficiency to meet the material requirements of the subsequent treatment process.

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