Cyclone separator for separating agglomerated sludge

Abstract

The invention relates to a cyclone separator for separating agglomerated sludge, which is characterized in that the cyclone separator comprises a cyclone separation pipe assembly, an upper support plate, a sludge tank, a filter support and a sludge suction pump, the cyclone separation pipe assembly is composed of a cyclone separation pipe main body, a feeding cover body and an overflow cover body; the feeding cover body is arranged on the side wall of the upper end of the cyclone separation pipe main body and is connected with the cyclone separation pipe main body into a whole, the feeding cover body is communicated with a sludge inlet of the cyclone separation pipe main body, a first sifter is arranged in the feeding cover body and is detachably connected with the upper end of the cyclone separation pipe main body, and a second sifter is arranged in the overflow cover body. According to the design, agglomerated sludge smaller than granular sludge is separated out and reused by utilizing the cyclone separator, and the screening devices with different precisions are added at the inlet and the overflow port of the equipment, so that the separation efficiency of the agglomerated sludge can be obviously enhanced.

Description

Technical Field

[0001] The invention relates to a cyclone separator, in particular to a cyclone separator used for separating agglomerated sludge. Background Art

[0002] As a mature fluid treatment method, cyclone separation technology has demonstrated its unique advantages in many industrial fields since the beginning of the 20th century. A cyclone separator, also known as a hydrocyclone or centrifugal settler, is an efficient device that uses a strong centrifugal field to achieve solid-liquid or liquid-liquid separation.

[0003] In the petrochemical wastewater treatment industry, since sewage treatment plants are often operating at low load, the substrate concentration in the biochemical pool is low, which is not conducive to the formation of granular sludge. At this time, the treatment efficiency of the biochemical pool will be very low, and these sludges will also undergo sludge aging, which can easily cause problems such as blockage. In addition, the existing cyclone separators cannot accurately screen sludges of different particle sizes, and their solid-liquid separation effect cannot achieve the effect required by the petrochemical industry. Therefore, in order to solve the above problems, it is particularly important to design a cyclone separator for separating agglomerated sludge. Summary of the invention

[0004] In order to solve the above problems, the present invention designs a cyclone separator for separating agglomerated sludge, which is provided with a first screener and a second screener in the cyclone separation tube assembly. The fine screeners added at the inlet and the overflow port can significantly enhance the separation efficiency of the agglomerated sludge, prevent sludge aging, and remove large particles of impurities.

[0005] In order to solve the above technical problems, the present invention provides a cyclone separator for separating agglomerated sludge, characterized in that it includes a cyclone separation tube assembly, an upper support plate, a sludge tank, a filter bracket and a sludge suction pump, wherein the cyclone separation tube assembly is composed of a cyclone separation tube body, a feed cover body and an overflow cover body, the cyclone separation tube body is supported and fixed on the upper support plate by a protrusion arranged on the outer wall, the lower end of the cyclone separation tube body passes through the upper support plate, the feed cover body is arranged on the side wall of the upper end of the cyclone separation tube body and is connected to it as a whole, the feed cover body is connected to the mud inlet of the cyclone separation tube body and a first screening device is installed inside the feed cover body The overflow cover is in the shape of an inverted funnel and is detachably connected to the upper end of the cyclone separation tube body. A second screener is installed in the overflow cover. The feed cover is connected to a control valve installed on the upper support plate. The control valve is connected to a sludge suction pump through a feed pipe. The sludge suction pump is placed in a sludge pool. The overflow cover is connected to a first discharge pipe. A diverter seat body is installed at the bottom of the cyclone separation tube body. The diverter seat body is connected to a confluence seat body through a first guide pipe. The liquid outlet of the confluence seat body is connected to a second discharge pipe through a pumping pump. A first flow meter is provided on the second discharge pipe.

[0006] Further: the control valve includes a three-way valve body, one end of the valve body is connected to the feed pipe, the feed pipe is connected to the feed cover body and the third discharge pipe at the same time through the control of the butterfly valve assembly arranged in the valve body, the feed pipe is provided with a second flow meter, and the third discharge pipe is provided with a third flow meter.

[0007] Furthermore: the mud suction pump is fixed to the top of the filter frame through a mounting plate, the top of the filter frame is sealed by the mounting plate, and the other five surfaces of the filter frame are installed with filter structures, and a rectangular mud suction cylinder is arranged in the filter frame, and the upper end of the rectangular mud suction cylinder is fixed on the mounting plate and is connected with the feed port of the mud suction pump, and there is a gap between the lower end of the rectangular mud suction cylinder and the bottom of the filter frame and a first mud suction port is opened thereon, and two second mud suction ports are respectively opened on the four surfaces of the front, back, left and right of the lower end of the rectangular mud suction cylinder, and the two second mud suction ports on the same surface are arranged one above and one below.

[0008] Furthermore: a sealing cover body is sleeved on the outer side of the rectangular mud suction cylinder body, and a connecting plate connected to it is arranged on the outer wall of the sealing cover body, and a threaded through hole is opened at a position opposite to the connecting plate on the mounting plate, and an adjusting screw is connected in the threaded through hole, and one end of the adjusting screw extends into the filter frame along the threaded through hole and is movably connected to the connecting plate, and sealing plugs are arranged on the inner walls around the sealing cover body relative to the position of the second mud suction port, and the sealing plugs are connected to the inner wall of the sealing cover body through a spring assembly, and the end of the sealing plug away from the sealing cover body is truncated cone-shaped, and a connecting groove matching the sealing plug is opened at the port of the second mud suction port.

[0009] Furthermore: the upper end of the first discharge pipe is connected to the fourth flow meter, the fourth flow meter is connected to the mechanical sealing structure arranged on the top of the upper support plate, the mechanical sealing structure is rotatably connected to the lower end of the corrugated telescopic pipe, the upper end of the corrugated telescopic pipe is connected to one end of the overflow pipe, and the other end of the overflow pipe is detachably connected to the upper end of the overflow cover through a flange assembly.

[0010] Furthermore: a support base connected to it is arranged on the outer walls on the left and right sides of the overflow cover body, and a vertically placed telescopic pole is installed at the bottom of the support base. The output shaft end of the telescopic pole is connected to the running wheel, and the running wheel is connected to the guide rail. A left and right guide rail is arranged on the upper support plates on the front and rear sides of the cyclone separation tube body.

[0011] Furthermore: the confluence seat body is also connected to the diversion seat body through a second flow guiding pipe, and the second flow guiding pipe is connected to the diversion seat body through a pressure switch valve.

[0012] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0013] 1. The present invention provides a first screener and a second screener in the cyclone separation tube assembly. The fine screeners added at the inlet and the overflow port can significantly enhance the separation efficiency of the agglomerated sludge, prevent sludge aging, and remove large particle impurities.

[0014] 2. The present invention adds a filter frame. The filter structure on the filter frame can effectively prevent large impurities from entering the sludge suction pump and prevent unnecessary blockage. The position of the sealing cover can be adjusted according to the height of the muddy water in the sludge pool, thereby blocking part of the mud suction port and allowing the sludge suction pump to be used normally.

[0015] 3. The present invention utilizes the centrifugal force principle to form a high-speed rotating vortex in the conical shell, and combines it with a special sieving system to achieve accurate screening of sludge with different particle sizes and optimize the solid-liquid separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a partial structural diagram of the present invention.

[0019] Figure 3 This is the internal structure diagram of the control valve.

[0020] Figure 4 This is the installation structure diagram of the sludge pump and filter frame.

[0021] Figure 5 It is a schematic diagram of the structure of the sealing cover and the rectangular mud suction cylinder.

[0022] In the figure: 1 is a sludge tank, 2 is a feed pipe, 3 is a cyclone separation tube body, 4 is an upper support plate, 5 is a control valve, 6 is an overflow pipe, 7 is a corrugated telescopic pipe, 8 is a mechanical seal structure, 9 is a second flow meter, 10 is a third flow meter, 11 is a fourth flow meter, 12 is a third discharge pipe, 13 is a first discharge pipe, 14 is a diverter seat body, 15 is a converging seat body, 16 is a first diversion pipe, 17 is a second diversion pipe, 18 is a pumping pump, 19 is the second discharge pipeline, 20 is the first flow meter, 21 is the overflow cover, 22 is the feed cover, 23 is the first screener, 24 is the second screener, 25 is the telescopic pole, 26 is the guide rail, 27 is the walking wheel, 28 is the butterfly valve assembly, 29 is the sealing cover, 30 is the filter bracket, 31 is the second mud suction port, 32 is the mud suction pump, 33 is the rectangular mud suction cylinder, 34 is the adjusting screw, 35 is the connecting plate, 36 is the sealing plug, and 37 is the spring assembly. DETAILED DESCRIPTION

[0023] like Figure 1 and Figure 2The cyclone separator for separating agglomerated sludge shown in the figure comprises a cyclone separation tube assembly, an upper support plate 4, a sludge tank 1 and a sludge suction pump 32. The cyclone separation tube assembly is composed of a cyclone separation tube body 3, a feed cover 22 and an overflow cover 21. The cyclone separation tube body is supported and fixed on the upper support plate by a protrusion arranged on the outer wall. The lower end of the cyclone separation tube body passes through the upper support plate. The feed cover is arranged on the side wall of the upper end of the cyclone separation tube body and is connected to it as a whole. The feed cover is connected to the mud inlet of the cyclone separation tube body and a first sifter 23 is installed inside it. The overflow cover is in the shape of an inverted funnel. , which is detachably connected to the upper end of the cyclone separation tube body, a second screener 24 is installed in the overflow cover body, the feed cover body is connected to the control valve 5 installed on the upper support plate, the control valve is connected to the sludge suction pump through the feed pipe 2, the sludge suction pump is placed in the sludge tank, the overflow cover body is connected to the first discharge pipe 13, a diverter seat body 14 is installed at the bottom of the cyclone separation tube body, the diverter seat body is connected to the confluence seat body 15 through the first guide pipe 16, the liquid outlet of the confluence seat body is connected to the second discharge pipe 19 through the pumping pump 18, and the second discharge pipe is provided with a first flow meter 20. The sludge extracted by the sludge suction pump enters the main body of the cyclone separation tube and will first be filtered through the first screener; the maximum size of the first screener should be larger than the diameter of the agglomerated sludge, so that the sample containing the agglomerated sludge can enter the main body of the cyclone separation tube through the first screener; after entering the main body of the cyclone separation tube, under the action of centrifugal force, a high-speed rotating vortex is formed in the conical shell, and the agglomerated sludge with larger density will gradually move downward, while the flocculent sludge with smaller density will swirl upward; during the upward swirling process of the flocculent sludge, it will be selectively filtered by the second screener; the actual design size of the second screener is smaller than the diameter of the agglomerated sludge particles, which can intercept the agglomerated sludge in the main body of the cyclone separation tube and make it settle downward; the flocculent sludge with small particles will be discharged from the overflow cover after passing through the second screener, and the agglomerated sludge will be quickly spun down under the action of centrifugal force and discharged through the second discharge pipe. The present invention separates and reuses agglomerated sludge smaller than the diameter of granular sludge by utilizing a cyclone separator, and significantly enhances the separation efficiency of agglomerated sludge by adding fine screeners at the inlet and overflow of the equipment, prevents sludge aging, and can also remove large particle impurities. Moreover, the present invention utilizes the principle of centrifugal force to form a high-speed rotating vortex in a conical shell, and combines with a special screener system to achieve accurate screening of sludge of different particle sizes, thereby optimizing the solid-liquid separation effect.

[0024] like Figure 2 and Figure 3The control valve comprises a three-way valve body, one end of which is connected to the feed pipe, and the feed pipe is connected to the feed cover body and the third discharge pipe 12 at the same time through the control of the butterfly valve assembly 28 arranged in the valve body. The feed pipe is provided with a second flow meter 9, and the third discharge pipe is provided with a third flow meter 10. The sludge suction pump extracts the activated sludge from the biochemical pool for petrochemical wastewater treatment and sends it to the cyclone separation pipe assembly. If all the liquid needs to enter the cyclone separation pipe assembly, the butterfly valve assembly can be completely closed; if it is necessary to take the original water sample for data measurement, the butterfly valve assembly is opened, and a part of the liquid will flow out directly through the third discharge pipe, and the activated sludge sample extracted from the petrochemical wastewater by the sludge suction pump can be obtained; the present invention can accurately control the amount of the activated sludge sample extracted by controlling the butterfly valve assembly in conjunction with the flow meter, and this design plays a role in increasing practical performance.

[0025] like Figure 4 The mud suction pump shown is fixed on the top of the filter frame 30 through a mounting plate, the top of the filter frame is sealed by the mounting plate, and the other five surfaces of the filter frame are installed with a filter screen structure, and a rectangular mud suction cylinder 33 is arranged in the filter frame, the upper end of the rectangular mud suction cylinder is fixed on the mounting plate and is connected to the feed port of the mud suction pump, there is a gap between the lower end of the rectangular mud suction cylinder and the bottom of the filter frame, and a first mud suction port is opened thereon, and two second mud suction ports 31 are respectively opened on the front, back, left and right four surfaces of the lower end of the rectangular mud suction cylinder, and the two second mud suction ports on the same surface are arranged one above and one below. The present invention adds a filter frame, and the filter screen structure on the filter frame can effectively prevent large impurities from entering the mud suction pump, and prevent unnecessary blockages from occurring.

[0026] like Figure 5 The outer side of the rectangular mud suction cylinder is sleeved with a sealing cover 29, and a connecting plate 35 connected to the sealing cover is provided on the outer wall of the sealing cover, and a threaded through hole is provided on the mounting plate at a position opposite to the connecting plate, and an adjusting screw 34 is connected in the threaded through hole, and one end of the adjusting screw extends into the filter frame along the threaded through hole and is movably connected to the connecting plate, and a sealing plug 36 is provided on the inner wall of the sealing cover relative to the position of the second mud suction port, and the sealing plug is connected to the inner wall of the sealing cover through a spring assembly 37, and the end of the sealing plug away from the sealing cover is truncated, and a connecting groove matching the sealing plug is provided at the port of the second mud suction port. The present invention can adjust the position of the sealing cover according to the height of the mud water in the sludge pool, thereby blocking part of the mud suction port, so that the mud suction pump can be used normally.

[0027] like Figure 1 and Figure 2The upper end of the first delivery pipe is connected to the fourth flowmeter 11, and the fourth flowmeter is connected to the mechanical seal structure 8 arranged on the top of the upper support plate, and the mechanical seal structure is rotatably connected to the lower end of the bellows telescopic pipe 7, and the upper end of the bellows telescopic pipe is connected to one end of the overflow pipe 6, and the other end of the overflow pipe is detachably connected to the upper end of the overflow cover through a flange assembly; the outer walls on the left and right sides of the overflow cover are provided with support seats connected to the overflow cover, and the bottom of the support seat is installed with a vertically placed telescopic pole 25, and the shaft end of the telescopic pole is connected to the running wheel 27, and the running wheel is connected to the guide rail 26, and the upper support plates on the front and rear sides of the cyclone separation tube body are respectively provided with a left and right placed guide rail. The present invention adopts the above structure to facilitate the disassembly and assembly of the overflow cover, and to increase the practical performance.

[0028] like Figure 1 The shown confluence seat body is also connected to the diverter seat body through the second diversion pipe 17, and the second diversion pipe is connected to the diverter seat body through the pressure switch valve. When the first diversion pipe is blocked, the pressure switch valve will automatically open due to the continuous action of the pumping pump, so that the conveying continues through the second diversion pipe. By adopting this structure, there is no need to stop the machine for maintenance, which greatly increases the practicality.

[0029] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A cyclone separator for separating agglomerated sludge, characterized in that: The invention comprises a cyclone separation tube assembly, an upper support plate (4), a sludge pool (1), a filter support (30) and a sludge suction pump (32); the cyclone separation tube assembly is composed of a cyclone separation tube body (3), a feed cover body (22) and an overflow cover body (21); the cyclone separation tube body is supported and fixed on the upper support plate by a protrusion arranged on the outer wall; the lower end of the cyclone separation tube body passes through the upper support plate; the feed cover body is arranged on the side wall of the upper end of the cyclone separation tube body and is connected to the cyclone separation tube body as a whole; the feed cover body is connected to the sludge inlet of the cyclone separation tube body and a first sifter (23) is installed inside the feed cover body; the overflow cover body is in the shape of an inverted funnel and is connected to the cyclone separation tube body. The upper end of the body is detachably connected, a second screener (24) is installed in the overflow cover body, the feed cover body is connected to a control valve (5) installed on the upper support plate, the control valve is connected to a sludge suction pump through a feed pipe (2), the sludge suction pump is placed in a sludge tank, the overflow cover body is connected to a first discharge pipe (13), a flow splitter seat body (14) is installed at the bottom of the cyclone separation tube body, the flow splitter seat body is connected to a confluence seat body (15) through a first guide pipe (16), the liquid outlet of the confluence seat body is connected to a second discharge pipe (19) through a pumping pump (18), and a first flow meter (20) is provided on the second discharge pipe.

2. A cyclone separator for separating agglomerated sludge according to claim 1, characterized in that: The control valve comprises a three-way valve body, one end of which is connected to a feed pipe. The feed pipe is connected to a feed cover body and is also connected to a third discharge pipe (12) through the control of a butterfly valve assembly (28) arranged in the valve body. A second flow meter (9) is arranged on the feed pipe, and a third flow meter (10) is arranged on the third discharge pipe.

3. A cyclone separator for separating agglomerated sludge according to claim 1, characterized in that: The mud suction pump is fixed to the top of the filter frame (30) through a mounting plate, the top of the filter frame is sealed by the mounting plate, and the other five surfaces of the filter frame are installed with filter screen structures. A rectangular mud suction cylinder (33) is arranged in the filter frame, the upper end of the rectangular mud suction cylinder is fixed to the mounting plate and is connected to the feed port of the mud suction pump, there is a gap between the lower end of the rectangular mud suction cylinder and the bottom of the filter frame and a first mud suction port is opened thereon, and two second mud suction ports (31) are respectively opened on the front, back, left and right four surfaces of the lower end of the rectangular mud suction cylinder, and the two second mud suction ports on the same surface are arranged one above and one below.

4. A cyclone separator for separating agglomerated sludge according to claim 3, characterized in that: A sealing cover (29) is sleeved on the outer side of the rectangular mud suction cylinder, and a connecting plate (35) connected to the sealing cover is arranged on the outer wall of the sealing cover, and a threaded through hole is provided on the mounting plate at a position opposite to the connecting plate, and an adjusting screw (34) is connected in the threaded through hole, and one end of the adjusting screw extends into the filter frame along the threaded through hole and is movably connected to the connecting plate. A sealing plug (36) is arranged on the inner wall of the sealing cover relative to the position of the second mud suction port, and the sealing plug is connected to the inner wall of the sealing cover through a spring assembly (37), and the end of the sealing plug away from the sealing cover is in a truncated cone shape, and a connecting groove matching the sealing plug is provided at the port of the second mud suction port.

5. A cyclone separator for separating agglomerated sludge according to claim 1, characterized in that: The upper end of the first discharge pipe is connected to a fourth flow meter (11), and the fourth flow meter is connected to a mechanical seal structure (8) arranged on the top of the upper support plate. The mechanical seal structure is rotatably connected to the lower end of the corrugated telescopic pipe (7), and the upper end of the corrugated telescopic pipe is connected to one end of the overflow pipe (6), and the other end of the overflow pipe is detachably connected to the upper end of the overflow cover through a flange assembly.

6. A cyclone separator for separating agglomerated sludge according to claim 1, characterized in that: The outer walls on the left and right sides of the overflow cover are provided with support seats connected thereto in one piece, a vertically placed telescopic pole (25) is installed at the bottom of the support seat, the shaft end of the telescopic pole is connected to a running wheel (27), the running wheel is connected to a guide rail (26), and a left and right guide rail is respectively provided on the upper support plates on the front and rear sides of the cyclone separation tube body.

7. A cyclone separator for separating agglomerated sludge according to claim 1, characterized in that: The confluence seat body is also connected to the diversion seat body through a second flow guiding pipe (17), and the second flow guiding pipe is connected to the diversion seat body through a pressure switch valve.

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