A fluidized bed protein separator

Abstract

The application discloses a flowing-sand type protein separator, which comprises a casing, a collecting device, a sand spraying pipe and a sand blocking pipe, a water inlet is arranged at the bottom of the casing, and a water outlet is arranged at the upper side of the casing; the collecting device is arranged at the top of the casing; the sand spraying pipe is arranged in the casing, the lower end of the sand spraying pipe is connected with the water inlet, a sand suction opening which is communicated with the inside of the casing is arranged on the outer wall of the lower end of the sand spraying pipe; the sand blocking pipe is sleeved between the outer periphery of the sand spraying pipe and the inner periphery of the casing, the lower end of the sand blocking pipe is spaced from the bottom surface of the casing to form a flow gap, flow channels are formed between the inner periphery wall of the sand blocking pipe and the outer periphery wall of the sand spraying pipe and between the outer periphery wall of the sand blocking pipe and the inner periphery wall of the casing, and the two flow channels are communicated to form a water outlet channel through the flow gap; quartz sand is filled in the bottom of the casing, and the quartz sand covers the flow gap. The filtering and separating effects of the quartz sand make the foam more delicate, the aeration amount larger, and the gas-water mixing area larger, and the foam refining effect is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment equipment, in particular to a flowing-sand type protein separator. BACKGROUND

[0002] The existing protein separator generally realizes foam generation through a bubbling pump to take out and separate the pollutants in water. The existing protein separator directly separates after foam flotation during operation. The existing protein separator simply relies on the buoyancy of foam for air-water mixing and air floatation separation. When the foam is relatively small, the internal flow rate of the equipment needs to be low to ensure that the small bubbles are not taken out of the equipment by the water flow, which causes the air floatation separation efficiency to decrease. Therefore, the conventional protein separator needs a relatively larger capacity shell under the condition of the same water treatment capacity. If the size of the shell is limited by the environment, the aeration amount, the lift and the flow of the air-water mixing pump need to be reduced according to the size of the shell, which causes the treatment capacity of the conventional protein separator to be more limited by the size, and the degree of foam refinement is low. SUMMARY

[0003] The present application aims to provide a flowing-sand type protein separator to solve one or more technical problems in the prior art and at least provide a beneficial choice or create conditions.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0005] The present application provides a flowing-sand type protein separator, which comprises a shell, a collecting device, a sand spraying pipe and a sand blocking pipe. A water inlet is arranged at the bottom of the shell, and a water outlet is arranged at the upper side of the shell. The collecting device is arranged at the top of the shell. The sand spraying pipe is arranged in the shell, and the upper end of the sand spraying pipe extends upwards to the upper part of the shell. The lower end of the sand spraying pipe is connected with the water inlet, and a sand suction port is arranged on the outer wall of the lower end of the sand spraying pipe and communicates with the inside of the shell. The sand blocking pipe is sleeved between the outer periphery of the sand spraying pipe and the inner periphery of the shell. The upper end of the sand blocking pipe is connected with the inner wall of the upper part of the shell, and the lower end of the sand blocking pipe forms a flow gap with the bottom surface of the shell. Flow channels are formed between the inner peripheral wall of the sand blocking pipe and the outer peripheral wall of the sand spraying pipe and between the outer peripheral wall of the sand blocking pipe and the inner peripheral wall of the shell. The two flow channels are connected through the flow gap to form a water outlet channel, and the end of the water outlet channel communicates with the water outlet.

[0006] Quartz sand is filled in the bottom of the shell, and the quartz sand covers the flow gap.

[0007] The beneficial effects of the present application are: in use, the water inlet is connected to the water-gas supply device, the water-gas supply device supplies the water-gas mixture from the water inlet into the sand blasting pipe, when the water-gas mixture flows into the sand blasting pipe from the water inlet, the quartz sand in the sand blasting pipe is sucked into the inside of the sand blasting pipe due to the pressure difference caused by the flow rate difference, the gas-water mixed fluid is accelerated and pressurized to reduce the volume of the gas bubbles, the gas pressure and internal energy increase, and the quartz sand collides with the gas-water mixed fluid flowing into the sand suction port, because the quartz sand has high friction, the relative motion exists between the two parties before the quartz sand is accelerated by the water flow resistance to the same speed as the gas-water mixed fluid in the movement direction, and the flow friction of the fluid increases due to the quartz sand, so that the fluid differential speed and friction force shear the high-pressure gas, the bubbles under high pressure are sheared to form finer bubbles, realizing the function of bubble refinement, the water-gas mixture is mixed with the quartz sand and sprayed out of the upper end of the sand blasting pipe, then under the action of gravity, the quartz sand falls back to the inside of the machine shell along the sand blocking pipe, then is sucked into the sand suction port, and the water also flows out of the water outlet along the water outlet channel, when the water flows through the water outlet channel, the deposited quartz sand overflows the overflow gap, and the quartz sand can block and filter the residual micro-bubbles in the water flow, so that the micro-bubbles are blocked and merged into larger bubbles to be separated, and then the water flow flows through the flow sand deposition area outside the overflow gap and separates the flow sand, at this time, the inside of the overflow gap is a bubble blocking area, and the outside is a flow sand deposition area. Thus, while increasing the gas-water contact area and improving the separation efficiency by using micro-bubbles, a smaller volume or a relatively larger processing capacity can be used compared with a conventional protein separator.

[0008] The present application utilizes the filtering and separating effect, so that the device of the present application can freely control the size of the device volume under the conditions of finer foam, larger aeration amount, larger gas-water mixing area, larger head and larger flow, and also utilizes the effect of bubble refinement to reduce the requirements for the gas-water mixing supply device, that is, to reduce the high-efficiency foaming requirements of the gas-water mixing pump.

[0009] As a further improvement of the above technical solution, a Venturi channel is formed in the lower end of the sand blasting pipe, and the sand suction port is arranged on the outer periphery of the Venturi channel. The quartz sand in the Venturi channel is sucked into the inside of the sand blasting pipe due to the pressure difference caused by the flow rate difference, and the Venturi channel accelerates and pressurizes the gas-water mixed fluid to reduce the volume of the gas bubbles.

[0010] As a further improvement of the above technical solution, the outer wall of the lower end of the sand blasting pipe is uniformly distributed with a plurality of sand suction ports.

[0011] As a further improvement of the above technical solution, the upper end of the sand blocking pipe is provided with a sand collecting funnel which is large at the top and small at the bottom, and the outer edge of the upper end of the sand collecting funnel is connected with the inner wall of the machine shell.

[0012] As a further improvement of the above technical solution, the bottom surface of the casing is in an inverted conical structure, and the water inlet is arranged at the lowest end of the casing.

[0013] As a further improvement of the above technical solution, the water outlet is communicated with the cavity between the liquid surface inside the casing and the collecting device through a foam recovery pipe.

[0014] As a further improvement of the above technical solution, a collecting cover is arranged at the top of the water outlet, and the collecting cover is connected with the foam recovery pipe.

[0015] As a further improvement of the above technical solution, the collecting device comprises a collecting cup arranged at the top of the casing and a bubble collecting funnel sleeved between the collecting cup and the inner side of the casing, and the bubble collecting funnel is in an inverted funnel structure with a small upper end and a large lower end.

[0016] As a further improvement of the above technical solution, the upper end of the bubble collecting funnel is connected with a collecting pipe extending into the collecting cup. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the drawings and examples.

[0018] Figure 1 is a schematic view of an embodiment of the flowing sand type protein separator provided by the present application. DETAILED DESCRIPTION

[0019] This part will describe the specific embodiments of the present application in detail, and the preferred embodiments of the present application are shown in the drawings, and the drawings are used to supplement the description in the text part of the description, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0020] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0021] In the description of the present application, if there is a word such as "several" or the like, the meaning is one or more, and the meaning of more than two is greater than, less than, more than, etc. and is not included in the number, and the above, below, etc. is understood as including the number.

[0022] In the description of the present application, the words such as arrangement, installation, connection and the like should be understood in a broad sense unless otherwise explicitly defined, and the skilled in the art can determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0023] With reference to Figure 1 The following is an embodiment of a flow-sand type protein separator according to the present application:

[0024] The flow-sand type protein separator of the present embodiment comprises a casing 100, a collecting device, a sand spraying pipe 200 and a sand blocking pipe 500.

[0025] A water inlet 110 is provided at the bottom of the casing 100, which is connected to an air-water mixing pump or other aeration equipment during use. A water outlet 120 is provided at the upper side of the casing 100, through which the purified water flows out. The collecting device is provided at the top of the casing 100.

[0026] The sand spraying pipe 200 is vertically arranged in the casing 100, with the upper end of the sand spraying pipe 200 extending upwards into the upper part of the casing 100 and located below the collecting device. The lower end of the sand spraying pipe 200 is connected to the water inlet 110, and a sand suction port 210 is provided on the outer wall of the lower end of the sand spraying pipe 200, which is in communication with the inside of the casing 100. The sand blocking pipe 500 is sleeved between the outer periphery of the sand spraying pipe 200 and the inner periphery of the casing 100, and the outer edge of the upper end of the sand blocking pipe 500 is connected to the inner wall of the upper part of the casing 100.

[0027] The lower end of the sand blocking pipe 500 forms a flow gap 800 with the bottom surface of the casing 100. In the present embodiment, the sand blocking pipe 500 is arranged in the casing 100, with the lower end of the sand blocking pipe 500 arranged above the bottom surface of the casing 100 to form the flow gap 800. Thus, a flow channel is formed between the inner periphery of the sand blocking pipe 500 and the outer periphery of the sand spraying pipe 200, and between the outer periphery of the sand blocking pipe 500 and the inner periphery of the casing 100. The inner flow channel 910 is formed between the inner periphery of the sand blocking pipe 500 and the outer periphery of the sand spraying pipe 200, and the outer flow channel 920 is formed between the outer periphery of the sand blocking pipe 500 and the inner periphery of the casing 100. The inner flow channel 910 and the outer flow channel 920 are in communication through the flow gap 800 to form a water outlet channel 900, with the end of the water outlet channel 900 in communication with the water outlet 120, and the beginning of the water outlet channel 900 in communication with the upper part of the casing 100.

[0028] The bottom of the casing 100 is filled with quartz sand, which covers the flow gap 800.

[0029] In use, the water inlet 110 is connected to a water-gas supply device, which supplies a water-gas mixture into the sand blasting pipe 200 from the water inlet 110. When the water-gas mixture flows into the sand blasting pipe 200 from the water inlet 110, the quartz sand is sucked into the inside of the sand blasting pipe 200 from the sand suction port 210 due to the pressure difference caused by the flow rate difference, and the gas-water mixed fluid is accelerated and pressurized to reduce the volume of the gas bubbles, increase the gas pressure and internal energy, and collide with the quartz sand flowing into the sand suction port. Since the quartz sand has a high friction, the quartz sand and the gas-water mixed fluid have relative motion before the quartz sand is accelerated by the water flow resistance to the same speed as the gas-water mixed fluid in the movement direction. The quartz sand increases the flow friction of the fluid, resulting in a shear force on the high-pressure gas. The bubbles under high pressure are sheared to form finer bubbles, achieving the function of bubble refinement. After the water-gas mixture is mixed with the quartz sand and sprayed from the upper end of the sand blasting pipe 200, the quartz sand falls back to the inside of the casing 100 under the action of gravity and is then sucked into the sand suction port 210. The water flows out of the water outlet 120 along the water outlet channel 900. When the water flows through the water outlet channel 900, the deposited quartz sand covers the flow gap 800, and the quartz sand can block and filter the residual micro-bubbles in the water flow, so that the micro-bubbles are blocked and merged into larger bubbles and separated. The water flow then flows through the flow sand deposition area outside the flow gap 800 and separates the flow sand. At this time, the inside of the flow gap 800 is a bubble blocking area, and the outside is a flow sand deposition area. Thus, while increasing the gas-water contact area and improving the separation efficiency, the micro-bubbles can be used to increase the volume of the conventional protein separator or have a relatively larger processing capacity.

[0030] The Venturi channel 220 is formed in the lower end of the sand blasting pipe 200, and the sand suction port 210 is arranged on the outer periphery of the Venturi channel 220. When the gas-water mixture flows through the Venturi channel 220, it is accelerated and forms a negative pressure, so that the quartz sand is sucked into the sand blasting pipe 200 from the sand suction port 210 and mixed with the gas-water mixture.

[0031] The quartz sand in the Venturi channel 220 is sucked into the inside of the sand blasting pipe 200 due to the pressure difference caused by the flow rate difference, and the Venturi channel 220 accelerates and pressurizes the gas-water mixed fluid to reduce the volume of the gas bubbles.

[0032] In some embodiments, the outer wall of the lower end of the sand blasting pipe 200 is uniformly distributed with a plurality of sand suction ports 210. The plurality of sand suction ports 210 can increase the amount of quartz sand sucked.

[0033] Furthermore, the upper end of the sand retaining tube 500 is connected to a sand collecting funnel 400, which is larger at the top and smaller at the bottom. The outer edge of the upper end of the sand collecting funnel 400 is connected to the inner wall of the housing 100. The sand collecting funnel 400 is used to collect quartz sand so that the quartz sand is gathered when it falls back.

[0034] Furthermore, the bottom surface of the housing 100 is an inverted cone structure, and the water inlet 110 is provided at the lowest end of the housing 100. The bottom surface of the inverted cone structure guides the quartz sand, and under the action of gravity, the quartz sand gathers toward the sand suction port 210.

[0035] Among them, the water outlet 120 is connected to the cavity between the liquid surface inside the casing 100 and the collection device through the foam recovery pipe 121. The water flow after being filtered by quartz sand still contains a small amount of microbubbles, and the microbubbles at this time flow back into the casing 100 through the foam recovery pipe 121.

[0036] In this embodiment, a collection cover 122 is installed on the top of the water outlet 120 . The collection cover 122 is connected to the foam recovery pipe 121 , and the microbubbles are collected through the collection cover 122 .

[0037] The collection device of this embodiment includes a collection cup 600 provided on the top of the housing 100, and a bubble gathering funnel 700 arranged between the collection cup 600 and the inner side of the housing 100. The bubble gathering funnel 700 is an inverted funnel structure with a small top and a large bottom. This solution collects and processes bubbles through the bubble gathering funnel 700.

[0038] In addition, the upper end of the bubble funnel 700 is connected to a collection tube 710 extending upward into the collection cup 600 .

[0039] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A fluidized sand protein separator characterized by: It includes: The shell (100) is provided with a water inlet (110) at the bottom of the shell (100), and a water outlet (120) is provided on the upper side of the shell (100); The collecting device is provided on the top of the shell (100); The sand injection pipe (200) is provided in the shell (100), the upper end of the sand injection pipe (200) extends upward to the upper part of the shell (100), the lower end of the sand injection pipe (200) is connected with the water inlet (110), and the outer wall of the lower end of the sand injection pipe (200) is provided with a sand suction port (210) communicated with the inside of the shell (100); The sand blocking pipe (500) is sleeved between the outer circumference of the sand injection pipe (200) and the inner circumference of the shell (100), the upper end of the sand blocking pipe (500) is connected with the inner wall of the upper part of the shell (100), and the lower end of the sand blocking pipe (500) is formed with a flow gap (800) with the bottom surface of the shell (100), the inner circumferential wall of the sand blocking pipe (500) and the outer circumferential wall of the sand injection pipe (200) and the outer circumferential wall of the sand blocking pipe (500) and the inner circumferential wall of the shell (100) are formed with flow channels, the two flow channels are communicated through the flow gap (800) to form a water outlet channel (900), and the tail end of the water outlet channel (900) is communicated with the water outlet (120); The bottom of the shell (100) is filled with quartz sand, and the quartz sand covers the flow gap (800); A venturi channel (220) is formed in the lower end of the sand injection pipe (200), and the sand suction port (210) is arranged on the outer circumference of the venturi channel (220); The water outlet (120) is communicated with the cavity between the liquid surface in the shell (100) and the collecting device through the foam recovery pipe (121).

2. The flowing sand type protein separator according to claim 1, wherein: The outer wall of the lower end of the sand injection pipe (200) is uniformly provided with a plurality of sand suction ports (210).

3. The flowing sand type protein separator according to claim 1, wherein: The upper end of the sand blocking pipe (500) is provided with a sand collecting funnel (400) which is large at the upper end and small at the lower end, and the outer edge of the upper end of the sand collecting funnel (400) is connected with the inner wall of the shell (100).

4. The flowing sand type protein separator according to claim 1, wherein: The bottom surface of the shell (100) is in an inverted conical structure, and the water inlet (110) is arranged at the lowest end of the shell (100).

5. The flowing sand type protein separator according to claim 1, wherein: A collecting cover (122) is arranged at the top of the water outlet (120), and the collecting cover (122) is connected with the foam recovery pipe (121).

6. The flowing sand type protein separator according to claim 1, wherein: The collecting device comprises a collecting cup (600) arranged on the top of the shell (100) and a bubble collecting funnel (700) sleeved between the collecting cup (600) and the inner side of the shell (100), and the bubble collecting funnel (700) is in an inverted funnel structure which is small at the upper end and large at the lower end.

7. The flowing sand type protein separator according to claim 6, wherein: The upper end of the polyfoam funnel (700) is connected with a collecting tube (710) which extends upward into the collecting cup (600).

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