Ceramic membrane filtration separation treatment continuous concentration device

Abstract

The utility model relates to the field of ceramic membrane filtration, and discloses a ceramic membrane filtration separation treatment continuous concentration device which comprises a material pool, the output end of the material pool is connected with the input end of a first-stage circulating pump, and the output end of the first-stage circulating pump is connected with the input end of a first-stage membrane stack through a water pipe; nanometer powder slurry in the material pool is conveyed into the first-stage membrane stack through the first-stage circulating pump, and 80% of water and inorganic salt in the slurry can be removed after the slurry passes through the ceramic membrane assembly in the first-stage membrane stack; the slurry with 80% of water and inorganic salt removed is sequentially conveyed into a second-stage membrane stack and a third-stage membrane stack through a second-stage circulating pump and a third-stage circulating pump again, and part of water and inorganic salt in the slurry can be removed again through ceramic membrane assemblies in the second-stage membrane stack and the third-stage membrane stack; while the slurry is filtered and concentrated by the second-stage membrane stack and the third-stage membrane stack, pure water for washing and desalting is introduced into the second-stage membrane stack and the third-stage membrane stack so as to reduce the content of inorganic salt in the slurry.

Description

Technical Field

[0001] The present application relates to the field of ceramic membrane filtration, and in particular to a ceramic membrane filtration separation treatment continuous concentration device. Background Art

[0002] Ceramic membrane is an inorganic or polymer material with special selective separation function. It can separate the fluid into two non-communicating parts, allowing one or several substances in the fluid to pass through while separating other substances. Membrane separation technology has been widely used in medicine, water treatment, chemical industry, electronics, food processing and other fields due to its high efficiency, energy saving, environmental protection and molecular-level filtration. It has become one of the most important technologies in separation science in this century. Membrane technology, which is recognized as one of the most important industrial technologies in the 21st century, is an emerging green industrial technology. During separation operations, ceramic membrane technology can selectively separate different substances from the micron level, submicron level to the molecular, ionic and atomic level, and achieve the purpose of sterilization, separation, purification or concentration according to different needs.

[0003] In the preparation process of nanopowder materials, for some powder systems with good dispersibility and nano-scale particle size, traditional plate and frame filtration, high-speed centrifugation and other washing methods cannot effectively separate the solid and liquid of these nano-slurries. There are disadvantages such as easy leakage of powder, turbid filtrate, large amount of washing water, and high labor intensity. Utility Model Content

[0004] In order to solve the problem that traditional washing methods such as plate and frame filtration and high-speed centrifugation cannot effectively separate the solid and liquid of these nano-slurries, and there are disadvantages such as powder leakage, turbid filtrate, large amount of washing water, and high labor intensity, the present application provides a ceramic membrane filtration separation treatment continuous concentration device.

[0005] The present application provides a ceramic membrane filtration separation treatment continuous concentration device that adopts the following technical solution:

[0006] A ceramic membrane filtration, separation and continuous concentration device comprises a material pool, wherein the output end of the material pool is connected to the input end of a primary circulation pump, the output end of the primary circulation pump is connected to the input end of a primary membrane stack through a water pipe, the output end of the primary membrane stack is connected to the input end of a pressure pump, the output end of the pressure pump is connected to the input end of a secondary circulation pump, the output end of the secondary circulation pump is connected to the input end of a secondary membrane stack, the output end of the secondary membrane stack is connected to the input end of a tertiary circulation pump, the output end of the tertiary circulation pump is connected to the input end of a tertiary membrane stack, and the output end of the tertiary membrane stack is connected to the input end of a filter pool.

[0007] Preferably, the first-stage membrane stack is composed of two to ten groups of ceramic membrane components connected in series, the second-stage membrane stack is composed of two to eight groups of ceramic membrane components connected in series, and the third-stage membrane stack is composed of one to six groups of ceramic membrane components connected in series.

[0008] Preferably, each group of the ceramic membrane assemblies is filled with nineteen to ninety-nine tubular ceramic membrane elements.

[0009] Preferably, the arrangement of the ceramic membrane components is carried out in a reasonable manner according to the concentration and change curve of the nano-powder slurry during the concentration process.

[0010] Preferably, the operating pressure of the first-stage membrane stack is 2-4 kgf / cm 2 By adding a pressure pump between the first and second membrane stacks, the operating pressure of the second and third membrane stacks is increased to 4-6 kgf / cm 2 .

[0011] In summary, this application has the following beneficial technical effects:

[0012] 1. The nanopowder slurry in the material pool is transported to the primary membrane stack through the primary circulation pump. After passing through the ceramic membrane components in the primary membrane stack, 80% of the water and inorganic salts in the slurry can be removed. The slurry with 80% of the water and inorganic salts removed is again transported to the secondary and tertiary membrane stacks in sequence through the secondary and tertiary circulation pumps. The ceramic membrane components in the secondary and tertiary membrane stacks can once again remove part of the water and inorganic salts in the slurry. While the secondary and tertiary membrane stacks are filtering and concentrating the slurry, pure water for washing and desalination is introduced into the secondary and tertiary membrane stacks to reduce the inorganic salt content in the slurry.

[0013] 2. The operating pressure of the first-stage membrane stack is 2-4 kgf / cm 2 By adding a pressure pump between the first and second membrane stacks, the operating pressure of the second and third membrane stacks is increased to 4-6 kgf / cm 2 In terms of transmission during the membrane concentration process, graded pressurization is adopted to effectively ensure the mass transfer power of each group of membrane components and enhance the membrane's anti-pollution ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural front view of the embodiment of the application.

[0015] Explanation of the accompanying symbols: 1. Material tank; 2. Primary circulation pump; 3. Water pipe; 4. Primary membrane stack; 5. Pressure pump; 6. Secondary circulation pump; 7. Secondary membrane stack; 8. Tertiary circulation pump; 9. Tertiary membrane stack; 10. Filter tank. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1 This application is described in further detail.

[0017] The present application discloses a ceramic membrane filtration separation treatment continuous concentration device, referring to Figure 1 , including a material pool 1, the output end of the material pool 1 is connected to the input end of a primary circulation pump 2, the output end of the primary circulation pump 2 is connected to the input end of a primary membrane stack 4 through a water pipe 3, the output end of the primary membrane stack 4 is connected to the input end of a pressure pump 5, the output end of the pressure pump 5 is connected to the input end of a secondary circulation pump 6, the output end of the secondary circulation pump 6 is connected to the input end of a secondary membrane stack 7 through a water pipe 3, the output end of the secondary membrane stack 7 is connected to the input end of a tertiary circulation pump 8 through a water pipe 3, the output end of the tertiary circulation pump 8 is connected to the input end of a tertiary membrane stack 9 through a water pipe 3, the output end of the tertiary membrane stack 9 is connected to the input end of a filter tank 10 through a water pipe 3, the material pool The nano-powder slurry in 1 is transported to the first-level membrane stack 4 through the first-level circulation pump 2. After passing through the ceramic membrane assembly in the first-level membrane stack 4, 80% of the water and inorganic salts in the slurry can be removed. The slurry with 80% of the water and inorganic salts removed is again transported to the second-level membrane stack 7 and the third-level membrane stack 9 in sequence through the second-level circulation pump 6 and the third-level circulation pump 8. The ceramic membrane assemblies in the second-level membrane stack 7 and the third-level membrane stack 9 can once again remove part of the water and inorganic salts in the slurry. While the second-level membrane stack 7 and the third-level membrane stack 9 are filtering and concentrating the slurry, pure water for washing and desalination is introduced into the second-level membrane stack 7 and the third-level membrane stack 9 to reduce the inorganic salt content in the slurry.

[0018] The first-stage membrane stack 4 is composed of two to ten groups of ceramic membrane modules connected in series, the second-stage membrane stack 7 is composed of two to eight groups of ceramic membrane modules connected in series, and the third-stage membrane stack 9 is composed of one to six groups of ceramic membrane modules connected in series. Each group of ceramic membrane modules is filled with nineteen to ninety-nine tubular ceramic membrane elements. The arrangement of the ceramic membrane modules is reasonable according to the concentration and change curve of the nano-powder slurry during the concentration process. High-precision ceramic membrane elements are selected with a filtration pore size of 2nm to 3nm to ensure that the nano-powder can be completely intercepted.

[0019] The operating pressure of the first-stage membrane stack 4 is 2-4 kgf / cm 2 The operating pressure of the secondary membrane stack 7 and the tertiary membrane stack 9 is increased to 4-6 kgf / cm by adding a pressure pump 5 between the primary membrane stack 4 and the secondary membrane stack 7. 2 In terms of transmission during the membrane concentration process, graded pressurization is adopted to effectively ensure the mass transfer power of each group of membrane components and enhance the membrane's anti-pollution ability.

[0020] The implementation principle of a ceramic membrane filtration, separation and continuous concentration device in an embodiment of the present application is as follows: when in use, the nanopowder slurry in the material pool 1 is transported to the first membrane stack 4 through the first circulation pump 2, and eighty percent of the water and inorganic salts in the slurry can be removed after passing through the ceramic membrane assembly in the first membrane stack 4. The slurry with eighty percent of the water and inorganic salts removed is again transported to the second membrane stack 7 and the third membrane stack 9 in sequence through the second circulation pump 6 and the third circulation pump 8. The ceramic membrane assemblies in the second membrane stack 7 and the third membrane stack 9 can once again remove part of the water and inorganic salts in the slurry. While the second membrane stack 7 and the third membrane stack 9 are filtering and concentrating the slurry, pure water for washing and desalination is introduced into the second membrane stack 7 and the third membrane stack 9 to reduce the inorganic salt content in the slurry. Finally, the filtered and concentrated slurry is transported to the filter tank 10 for storage and treatment.

[0021] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0022] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0023] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0024] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A ceramic membrane filtration separation treatment continuous concentration device, comprising a material pool (1), characterized in that: The output end of the material pool (1) is connected to the input end of a primary circulation pump (2), the output end of the primary circulation pump (2) is connected to the input end of a primary membrane stack (4) through a water pipe (3), the output end of the primary membrane stack (4) is connected to the input end of a pressure pump (5), the output end of the pressure pump (5) is connected to the input end of a secondary circulation pump (6), the output end of the secondary circulation pump (6) is connected to the input end of a secondary membrane stack (7), the output end of the secondary membrane stack (7) is connected to the input end of a tertiary circulation pump (8), the output end of the tertiary circulation pump (8) is connected to the input end of a tertiary membrane stack (9), and the output end of the tertiary membrane stack (9) is connected to the input end of a filter tank (10).

2. The ceramic membrane filtration separation treatment continuous concentration device according to claim 1, characterized in that: The first-stage membrane stack (4) is composed of two to ten groups of ceramic membrane components connected in series, the second-stage membrane stack (7) is composed of two to eight groups of ceramic membrane components connected in series, and the third-stage membrane stack (9) is composed of one to six groups of ceramic membrane components connected in series.

3. The ceramic membrane filtration separation treatment continuous concentration device according to claim 2, characterized in that: Each group of the ceramic membrane components is filled with nineteen to ninety-nine tubular ceramic membrane elements.

4. The ceramic membrane filtration separation treatment continuous concentration device according to claim 2, characterized in that: The arrangement of the ceramic membrane components is carried out in a reasonable manner according to the concentration and change curve of the nano powder slurry during the concentration process.

5. The ceramic membrane filtration separation treatment continuous concentration device according to claim 1, characterized in that: The operating pressure of the first-level membrane stack (4) is 2-4 kgf / cm 2 The operating pressure of the secondary membrane stack (7) and the tertiary membrane stack (9) is increased to 4-6 kgf / cm by adding a pressure pump (5) between the primary membrane stack (4) and the secondary membrane stack (7). 2 .

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