Organic waste liquid inorganic reaction and desalination integrated device

Abstract

The invention relates to the technical field of supercritical water reaction, and provides an organic waste liquid inorganic reaction and desalination integrated device which is characterized in that an inner body is arranged inside an outer body, and a first gap is reserved between the inner body and the outer body; the particle discharging device is connected with the outer parts of the inner body and the body; an outer permeable pipe and an inner permeable pipe are arranged in the inner body and are shorter than the inner body, a second gap is reserved between the outer permeable pipe and the inner body, a third gap is reserved between the inner permeable pipe and the outer permeable pipe, and corrosion-resistant plates are arranged at the bottoms of the inner permeable pipe and the outer permeable pipe; a reactant inlet and a reactant outlet are formed in the inner body; the outer body is provided with a cooling water inlet and a cooling water outlet. According to the invention, salt precipitation can be prevented from blocking and corroding the reactor and pipelines and equipment at the rear end, the salt cleaning and maintenance times of the reactor are reduced, the service life of main equipment is prolonged, the continuous and stable operation of the supercritical water reactor is ensured, and the treatment efficiency of organic waste liquid is improved.

Description

Technical Field

[0001] The invention relates to the technical field of supercritical water reaction, and in particular to an integrated device for inorganic reaction and desalination of organic waste liquid. Background Art

[0002] Supercritical water oxidation technology is the most efficient technical means to degrade organic matter. Under conditions of temperature above 374°C and pressure greater than 22.1Mpa, oxygen and organic matter can be dissolved in each other. The reaction efficiency is high and organic matter can be completely oxidized into water, carbon dioxide and inorganic salts.

[0003] At present, supercritical water oxidation reactors are usually used to carry out supercritical water oxidation reactions to inorganically treat organic waste liquids. However, since most salts have extremely low solubility under supercritical water conditions, when conventional supercritical water oxidation reactors are used to treat saline waste liquids or waste liquids that produce a large amount of salt after oxidation, the precipitation of salt will cause blockage of the reactor outlet, and the remaining salt-containing solution will cause serious pipeline corrosion, requiring frequent desalination or pipeline maintenance, resulting in poor continuous and stable operation of the supercritical water oxidation reactor and reduced efficiency in treating organic waste liquids. Summary of the invention

[0004] The problem solved by the invention is how to improve the continuous operation capability of a reaction device, the life of a reactor and the efficiency of treating organic waste liquid.

[0005] In order to solve the above problems, the present invention provides an integrated device for inorganic reaction and desalination of organic waste liquid.

[0006] In a first aspect, the present invention provides an integrated device for inorganic reaction and desalination of organic waste liquid, comprising an inner body, an outer body and a particle discharge device, wherein the inner body is arranged inside the outer body, and a first gap is left between the inner body and the outer body, and the first gap is used to fill cooling water; one end of the particle discharge device is connected to the particle discharge port of the inner body, and the other end is arranged outside the outer body;

[0007] An outer water-permeable pipe and an inner water-permeable pipe are arranged inside the inner body, the outer water-permeable pipe and the inner water-permeable pipe have the same length and are smaller than the length of the inner body, a second gap is left between the outer water-permeable pipe and the inner body, the second gap is used to fill the salt precipitation microsphere particles, the inner water-permeable pipe is arranged inside the outer water-permeable pipe, a third gap is left between the inner water-permeable pipe and the outer water-permeable pipe, the third gap is connected with the first gap, and a corrosion-resistant plate is arranged at the bottom of the inner water-permeable pipe and the outer water-permeable pipe, and a through hole for connecting the inside of the inner water-permeable pipe and the second gap is opened on the corrosion-resistant plate;

[0008] The inner body is provided with a reactant inlet and a reactant outlet, wherein one end of the reactant inlet is communicated with the inner water-permeable pipe and the other end extends out of the outer body, and one end of the reactant outlet is communicated with the second gap and the other end extends out of the outer body;

[0009] The outer body is provided with a cooling water inlet and a cooling water outlet.

[0010] Optionally, a first annular baffle and a second annular baffle are arranged in the second gap, the first annular baffle is arranged on the inner wall of the inner body, the second annular baffle is arranged on the outer wall of the outer water-permeable pipe, and the projections of the first annular baffle on the second annular baffle partially overlap.

[0011] Optionally, the first annular baffle and the second annular baffle are both tilted downward, and the tilt angle is 45 to 75 degrees.

[0012] Optionally, the organic waste liquid inorganic reaction and desalination integrated device further comprises a separation washer, the separation washer comprises a shell and a sieve plate, the inlet of the shell is connected to the particle discharge device, and the sieve plate is arranged in the middle and upper part of the shell;

[0013] The second gap is also filled with catalyst microsphere particles, the diameter of the salt-precipitating microsphere particles is larger than the catalyst microsphere particles, and the diameter of the sieve holes on the sieve plate is larger than the diameter of the catalyst microsphere particles and smaller than the diameter of the salt-precipitating microsphere particles.

[0014] Optionally, a flushing port and a saline outlet are provided on the shell, wherein the flushing port is located at the upper part of the shell, and the saline outlet is provided at the lower part of the shell.

[0015] Optionally, a salt precipitation microsphere discharge port is provided on the shell near the sieve plate, and a catalyst microsphere discharge port is provided at the lower part of the shell.

[0016] Optionally, an exhaust port is provided at the upper portion of the shell, and a back pressure valve is provided at the exhaust port.

[0017] Optionally, a salt pan is provided at the bottom of the second gap, and the salt pan is used to contain the salt precipitation microsphere particles and the catalyst microsphere particles.

[0018] Optionally, the integrated device for inorganic reaction and desalination of organic waste liquid also includes an inlet and outlet pressure difference detector and an inner cavity temperature detector, wherein the inlet and outlet pressure difference detector is used to detect the pressure difference between the reactant outlet and the inner cavity of the reactor, and the inner cavity temperature detector is used to detect the reaction temperature in the inner permeable pipe.

[0019] Optionally, the area where the corrosion-resistant plate overlaps with the inner water-permeable pipe is made of corrosion-resistant steel material, and the area where the corrosion-resistant plate overlaps with the third gap is made of permeable material.

[0020] The beneficial effects of the organic waste liquid inorganic reaction and desalination integrated device of the present invention are as follows: an inner body, an outer body and a particle discharge device are provided, the inner body is provided inside the outer body, and a first gap is left between the inner body and the outer body, the first gap is used to fill cooling water, an outer water-permeable pipe and an inner water-permeable pipe are provided inside the inner body, the inner water-permeable pipe is provided inside the outer water-permeable pipe, a third gap is left between the inner water-permeable pipe and the outer water-permeable pipe, the third gap is connected to the first gap, so that cooling water is passed into the third gap. A reactant inlet is provided on the inner body, one end of the reactant inlet is connected to the inner water-permeable pipe, and the other end extends out of the outer body. The lengths of the outer water-permeable pipe and the inner water-permeable pipe are the same and less than the length of the inner body, a second gap is left between the outer water-permeable pipe and the inner body, the second gap is used to fill salt precipitation microsphere particles, one end of the reactant outlet is connected to the second gap, and the other end extends out of the outer body. The bottom of the inner and outer water-permeable pipes is provided with a corrosion-resistant plate, and a through hole for connecting the inner and second gaps of the inner water-permeable pipe is provided on the corrosion-resistant plate. The corrosion-resistant plate effectively prevents the corrosion of organic waste liquid or inorganic waste liquid and increases the service life. At the same time, the diameter of the through hole provided on the corrosion-resistant plate is smaller than the diameter of the microsphere particles filled in the second gap, so that the organic waste liquid treated by the supercritical water oxidation reaction flows to the second gap, and the microsphere particles filled in the second gap do not flow back to the area in the inner water-permeable pipe. The cooling water flows into the inner water-permeable pipe through the inner and outer water-permeable pipes. Due to the supercritical water oxidation reaction in the inner water-permeable pipe, the cooling water flowing in is continuously evaporated, and a layer of water film that is always flowing and low in temperature is formed on the pipe walls of the inner and outer water-permeable pipes, so as to prevent salt precipitation from adhering to the inner and outer water-permeable pipes. One end of the particle discharge device is connected to the particle discharge port of the inner body, and the other end is arranged outside the outer body. The outer body is provided with a cooling water inlet and a cooling water outlet. When in use, cooling water is first injected into the first gap and the third gap from the cooling water inlet, and the cooling water outlet is opened to generate cooling water circulation in the first gap and the third gap. At the same time, the inner water permeable pipe, the outer water permeable pipe, the inner body and the outer body realize the partition of the reaction zone and the salt precipitation zone. For example, catalysts, organic waste liquids, etc. are injected into the inner water permeable pipe from the reactant inlet, and the organic waste liquids are subjected to supercritical water oxidation reaction in the inner water permeable pipe. The cooling water in the third gap enters the inner water permeable pipe from the inner water permeable pipe and enters the second gap from the outer water permeable pipe, absorbs excess heat released by the supercritical water oxidation reaction, and converts the permeated cooling water into supercritical water. Moreover, a layer of low-temperature non-supercritical high-pressure water film that always flows will be formed on the water permeable pipe wall to prevent salt precipitation and accumulation on the water permeable pipe wall and also prevent corrosion of the water permeable pipe wall.The organic waste liquid after the primary treatment flows into the second gap at the lower end of the inner water permeable pipe and the outer water permeable pipe through the corrosion-resistant plate. The salt-precipitating microsphere particles arranged in the second gap perform secondary treatment on the organic waste liquid after the primary treatment, that is, perform salt precipitation treatment on it, and then discharge it through the reactant outlet. The salt content of the waste liquid after the secondary treatment is low, which effectively reduces the corrosion effect of the inner wall of the inner body and the rear-end pipelines and equipment in the second gap through which it flows. The microsphere particles in the second gap absorb salt to prevent salt precipitation from clogging the reactor and the rear-end pipelines and equipment, reduce the number of times the reactor is cleaned of salt and repaired, ensure the continuous and stable operation of the supercritical water reactor, and thus increase the treatment efficiency and effect of the organic waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an integrated device for inorganic reaction and desalination of organic waste liquid according to an embodiment of the present invention;

[0022] Figure 2 It is a partial top view schematic diagram of an integrated device for inorganic reaction and desalination of organic waste liquid according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1-inner body; 11-external water permeable pipe; 12-inner water permeable pipe; 13-corrosion resistant plate; 14-reactant inlet; 15-reactant outlet; 16-salt precipitation microsphere particles; 17-catalyst microsphere particles; 18-salt pan;

[0025] 2-external body; 21-cooling water inlet; 22-cooling water outlet;

[0026] 3- Particle discharge device;

[0027] 4- first annular baffle;

[0028] 5- second annular baffle;

[0029] 6-separation cleaning device; 61-housing; 611-flushing port; 612-brine outlet; 613-salt precipitation microsphere outlet; 614-catalyst microsphere outlet; 615-exhaust port; 616-back pressure valve; 62-sieve plate;

[0030] 7-Inlet and outlet pressure difference detector;

[0031] 8- Inner cavity temperature detector. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0033] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] In the related art, only part of the salts that are insoluble in the supercritical water reaction will precipitate in the supercritical water, such as K2CO3, K3PO4, K2HPO4, KH2PO4, NaNO3, KNO3 and Ca(NO3)2), which are more likely to block the reactor and pipelines, while the other part of the salts, such as Na2CO3, Na2SO4, Na3PO4, etc., are very easy to precipitate and adhere to the inner wall of the reactor to corrode and scale, which is easy to cause blockage of the outlet pipeline, etc. In order to solve the corrosion or blockage of the supercritical water oxidation reactor by salt-containing waste liquid or a large amount of salt-producing waste liquid after oxidation, a corrosion-resistant lining or pressure-resistant heat-insulating filling material is set on the inner wall of the reactor. Although it can improve the corrosion resistance of the supercritical reactor to a certain extent, it is impossible to separate the salt in the waste liquid, and the effluent is still highly corrosive to the pipelines and equipment at the rear end, and the corrosion-resistant lining will also be consumed over time and needs to be replaced or cleaned. Alternatively, a filtering component or a mechanical scraping device is installed at the outlet of the reactor to clean the online inorganic salt. However, the supercritical working conditions have high requirements on moving parts such as mechanical scrapers, resulting in low cost and continuous and stable operation capabilities. In addition, the brine still needs to be introduced into the subsequent system, which brings corrosion problems.

[0036] like Figure 1 Shown and Figure 2 In view of the problems existing in the above-mentioned related technologies, the present embodiment provides an integrated device for inorganic reaction and desalination of organic waste liquid, including an inner body 1, an outer body 2 and a particle discharge device 3, wherein the inner body 1 is arranged inside the outer body 2, and a first gap is left between the inner body 1 and the outer body 2, and the first gap is used to fill cooling water; one end of the particle discharge device 3 is connected to the particle discharge port of the inner body 1, and the other end is arranged outside the outer body 2.

[0037] Specifically, the inner body 1 and the outer body 2 are cylindrical barrels, the cross-sectional diameter of the inner body 1 is smaller than the cross-sectional diameter of the outer body 2, the inner body 1 and the outer body 2 are coaxially nested to form a jacketed reactor, a first gap is left between the inner body 1 and the outer body 2, and the first gap is filled with cooling water, and the inner body 1 is filled with salt precipitation microsphere particles 16, which are 1-3 mm in size and have uniformly arranged crystal sites on the surface to adsorb inorganic salts in organic waste liquid undergoing supercritical water oxidation reaction. In order to discharge the salt precipitation microsphere particles 16, a particle discharge device 3 is provided at the bottom of the inner body 1 and the outer body 2, one end of which is connected to the particle discharge port of the inner body 1, and the other end is provided on the outside of the outer body 2, and the particle discharge device 3 is composed of a multifunctional valve group with adjustable switch and opening and an orifice plate that can be automatically switched, and the valve and the orifice plate can be controlled separately, for depressurizing the inner body 1 and discharging the particles in the inner body 1 to the outside of the outer body 2.

[0038] An outer water-permeable pipe 11 and an inner water-permeable pipe 12 are arranged inside the inner body 1. The lengths of the outer water-permeable pipe 11 and the inner water-permeable pipe 12 are the same and smaller than the length of the inner body 1. A second gap is left between the outer water-permeable pipe 11 and the inner body 1. The inner water-permeable pipe 12 is arranged inside the outer water-permeable pipe 11. A third gap is left between the inner water-permeable pipe 12 and the outer water-permeable pipe 11. The third gap is connected with the first gap. A corrosion-resistant plate 13 is arranged at the bottom of the inner water-permeable pipe 12 and the outer water-permeable pipe 11. A through hole is opened on the corrosion-resistant plate 13 for connecting the inside of the inner water-permeable pipe 12 and the second gap.

[0039] The inner body 1 is provided with a reactant inlet 14 and a reactant outlet 15, wherein one end of the reactant inlet 14 is connected to the inner water-permeable pipe 12 and the other end extends out of the outer body 2, and one end of the reactant outlet 15 is connected to the second gap and the other end extends out of the outer body 2.

[0040] Specifically, the inner body 1 is provided with an outer water-permeable pipe 11 and an inner water-permeable pipe 12 which are nested with each other. The inner water-permeable pipe 12 is arranged inside the outer water-permeable pipe 11. The cross-sectional diameter of the inner water-permeable pipe 12 is smaller than the cross-sectional diameter of the outer water-permeable pipe 11. A third gap is left between the inner water-permeable pipe 12 and the outer water-permeable pipe 11. The third gap is connected with the first gap so that cooling water can flow into the third gap. A corrosion-resistant plate 13 is provided at the bottom of the inner water-permeable pipe 12 and the outer water-permeable pipe 11. A through hole for connecting the inner water-permeable pipe 12 and the second gap is provided on the corrosion-resistant plate 13. The corrosion-resistant plate 13 effectively prevents corrosion of organic waste liquid or inorganic waste liquid and increases the service life. At the same time, a through hole is provided on the corrosion-resistant plate 13. The through hole diameter is smaller than the diameter of the microsphere particles filled in the second gap. While ensuring that the organic waste liquid treated by the supercritical water oxidation reaction flows to the second gap, it also ensures that the microsphere particles filled in the second gap will not flow back to the area in the inner water-permeable pipe 12. It should be noted that the salt-precipitating microsphere particles 16 can be enlarged or reduced according to the design scale of the reactor. It is preferred to use one-piece microspheres with uniform thorns, uniform pits, and uniform grooves on the surface. The material can be stainless steel, ceramic, etc., or natural rough particles can be used instead, such as irregular sand and gravel.

[0041] The inner body 1 is provided with a reactant inlet 14 and a reactant outlet 15. Usually, there is one reactant inlet 14 and two reactant outlets 15. Figure 1 One end of the reactant inlet 14 is connected to the inner water permeable pipe 12, and is used to inject, for example, a catalyst, organic waste liquid, etc. into the inner water permeable pipe 12, so that the area in the inner water permeable pipe 12 (such as Figure 1 A second gap is left between the inner wall of the inner body 1 and the outer wall of the outer water permeable pipe 11, such as Figure 1 Region C and region B in the inner water permeable pipe 12, wherein the length of the inner water permeable pipe 12 and the outer water permeable pipe 11 are the same and less than the length of the inner body 1, and the second gap (i.e., region B) between the bottom of the inner water permeable pipe 12 and the outer water permeable pipe 11 and the inner wall of the bottom of the inner body 1 is used to hold the microsphere particles. One end of the reactant outlet 15 is connected to the second gap, and the other end extends out of the outer body 2. The reactant outlet 15 is used to discharge the treated inorganic waste liquid and fill the salt precipitation microsphere particles 16. When treating organic waste liquid, it is injected into the inner water permeable pipe 12, i.e., region A, through the reactant inlet 14 to perform supercritical water oxidation reaction, and then flows into the second gap region B from the bottom of the water permeable pipe, for example, salt precipitation or catalytic treatment, and finally the treated inorganic waste liquid is discharged from the reactant outlet 15 through the second gap region C to the organic waste liquid inorganic reaction and desalination integrated device.

[0042] In addition, the inner water-permeable pipe 12 and the outer water-permeable pipe 11 can also be an integrally formed pipe with micron-level curved channels inside, or can be formed by pressing and rolling multiple layers of mesh plates with different apertures evenly distributed, wherein the water permeability of the outer water-permeable pipe 11 is always greater than that of the inner water-permeable pipe 12.

[0043] The outer body 2 is provided with a cooling water inlet 21 and a cooling water outlet 22, wherein the cooling water inlet 21 is used to inject cooling water, and the cooling water outlet 22 is used to discharge cooling water, that is, when in use, the cooling water inlet 21 and the cooling water outlet 22 are used simultaneously, so that the cooling water in the first gap is circulated in real time, ensuring that the temperature of the cooling water therein is always low. And by filling the first gap with cooling water, the outer wall of the inner body 1 can only bear high pressure, greatly reducing the thickness of the outer wall of the reactor and increasing the operating life of the equipment. The outer wall of the inner body 1 does not need to bear high temperature and corrosion, greatly reducing the material requirements, and can be made of stainless steel or high-strength steel, greatly reducing the cost of the reactor.

[0044] In this embodiment, an inner body 1, an outer body 2 and a particle discharge device 3 are provided, the inner body 1 is provided inside the outer body 2, and a first gap is left between the inner body 1 and the outer body 2, the first gap is used to fill cooling water, an outer water-permeable pipe 11 and an inner water-permeable pipe 12 are provided inside the inner body 1, the inner water-permeable pipe 12 is provided inside the outer water-permeable pipe 11, a third gap is left between the inner water-permeable pipe 12 and the outer water-permeable pipe 11, and the third gap is connected to the first gap so that cooling water can be passed into the third gap. A reactant inlet 14 is provided on the inner body 1, one end of the reactant inlet 14 is connected to the inner water-permeable pipe 12, and the other end extends out of the outer body 2. The lengths of the outer water-permeable pipe 11 and the inner water-permeable pipe 12 are the same and smaller than the length of the inner body 1, a second gap is left between the outer water-permeable pipe 11 and the inner body 1, and the second gap is used to fill the salt precipitation microsphere particles 16, one end of the reactant outlet 15 is connected to the second gap, and the other end extends out of the outer body 2. The bottom of the inner water permeable pipe 12 and the outer water permeable pipe 11 is provided with a corrosion-resistant plate 13, and a through hole for connecting the inner water permeable pipe 12 and the second gap is provided on the corrosion-resistant plate 13. The corrosion-resistant plate 13 effectively prevents the corrosion of organic waste liquid or inorganic waste liquid and increases the service life. At the same time, the diameter of the through hole provided on the corrosion-resistant plate 13 is smaller than the diameter of the microsphere particles filled in the second gap, which ensures that the organic waste liquid treated by the supercritical water oxidation reaction flows to the second gap, and also ensures that the microsphere particles filled in the second gap will not flow back to the area in the inner water permeable pipe 12. The cooling water flows into the inner water permeable pipe 12 through the inner water permeable pipe 12 and the outer water permeable pipe 11. Due to the supercritical water oxidation reaction in the inner water permeable pipe 12, the cooling water flowing in is continuously evaporated, and a layer of water film that is always flowing and low temperature is formed on the pipe walls of the inner water permeable pipe 12 and the outer water permeable pipe 11, which prevents salt precipitation from adhering to the inner water permeable pipe 12 and the outer water permeable pipe 11. One end of the particle discharge device 3 is connected to the particle discharge port of the inner body 1, and the other end is arranged outside the outer body 2. The outer body 2 is provided with a cooling water inlet 21 and a cooling water outlet 22. When in use, cooling water is first injected into the first gap and the third gap through the cooling water inlet 21, and the cooling water outlet 22 is opened to generate cooling water circulation in the first gap and the third gap. At the same time, the inner water permeable pipe 12, the outer water permeable pipe 11, the inner body 1 and the outer body 2 realize the partition of the reaction zone and the salt precipitation zone. For example, catalysts, organic waste liquids, etc. are injected into the inner water permeable pipe 12 through the reactant inlet 14, and the organic waste liquids are subjected to supercritical water oxidation reaction in the inner water permeable pipe 12. The cooling water in the third gap enters the inner water permeable pipe 12 through the inner water permeable pipe 12, and enters the second gap through the outer water permeable pipe 11, absorbs excess heat released by the supercritical water oxidation reaction, and converts the permeated cooling water into supercritical water. Moreover, a layer of low-temperature non-supercritical high-pressure water film that always flows will be formed on the water permeable pipe wall to prevent salt precipitation and accumulation on the water permeable pipe wall and also prevent corrosion of the water permeable pipe wall.The organic waste liquid after the initial treatment flows into the second gap at the lower ends of the inner water permeable pipe 12 and the outer water permeable pipe 11 through the corrosion-resistant plate 13. The salt-precipitating microsphere particles 16 arranged in the second gap perform secondary treatment on the organic waste liquid after the initial treatment, that is, perform salt precipitation treatment on it, and then discharge it through the reactant outlet 15. The salt content of the waste liquid after the secondary treatment is low, which effectively reduces the corrosion effect of the inner wall of the inner body 1 in the second gap through which it flows, as well as the rear-end pipelines and equipment. The microsphere particles in the second gap absorb salt to prevent salt precipitation from clogging the reactor and the rear-end pipelines and equipment, reduce the number of times the reactor is cleaned of salt and repaired, ensure the continuous and stable operation of the supercritical water reactor, and thereby increase the treatment efficiency and effect of the organic waste liquid.

[0045] Alternatively, if Figure 1 As shown, a first annular baffle 4 and a second annular baffle 5 are arranged in the second gap, the first annular baffle 4 is arranged on the inner wall of the inner body 1, and the second annular baffle 5 is arranged on the outer wall of the outer water-permeable pipe 11, and the projections of the first annular baffle 4 on the second annular baffle 5 partially overlap, that is, the distance between the end of the first annular baffle 4 away from the inner body 1 and the outer water-permeable pipe 11 is smaller than the width of the second annular baffle 5, or the distance between the end of the second annular baffle 5 away from the outer water-permeable pipe 11 and the inner body 1 is smaller than the width of the first annular baffle, so that the treated inorganic waste liquid passes through the second gap in a curve, further intercepting the inorganic salts.

[0046] Optionally, the first annular baffle 4 and the second annular baffle 5 are both arranged to be tilted downward, and the tilt angle is 45 to 75 degrees, so as to further enhance the effect of intercepting inorganic salts.

[0047] Optionally, the organic waste liquid inorganic reaction and desalination integrated device also includes a separation washer 6, which includes a shell 61 and a sieve plate 62, the inlet of the shell 61 is connected to the particle discharge device 3, and the sieve plate 62 is arranged in the middle of the shell 61.

[0048] The second gap is filled with salt-precipitating microsphere particles 16 and catalyst microsphere particles 17 . The diameter of the salt-precipitating microsphere particles 16 is larger than that of the catalyst microsphere particles 17 . The diameter of the sieve holes on the sieve plate 62 is larger than that of the catalyst microsphere particles 17 and smaller than that of the salt-precipitating microsphere particles 16 .

[0049] Specifically, when the organic waste liquid is treated, the reactant inlet 14, the reactant outlet 15 and the cooling water outlet 22 are closed, the particle discharge device 3 is opened, and the valve group and the pressure relief valve gradually release the pressure on the reactor, and then the folding orifice plate is opened to discharge the salt microsphere particles with the help of the residual pressure of the reactor. The cooling water inlet 21 continuously injects cooling water into the outer body 2, and the cooling water enters the second gap through the inner water permeable pipe 12 and the outer water permeable pipe 11, and cleans it and the residual salt, and dissolves the inorganic salt on the salt-precipitating microsphere particles 16, and discharges the salt water and the salt-precipitating microsphere particles 16 into the shell 61 of the separation and cleaning device 6 through the particle discharge device 3, and the sieve plate 62 screens out the salt-precipitating microsphere particles 16 and retains them in the upper part of the shell 61, which can be recycled according to demand, and the salt water flows to the lower part of the shell 61 for discharge.

[0050] When the organic waste liquid contains refractory organic matter, catalyst microsphere particles 17 are laid on the top layer of the salt precipitation microsphere particles 16. The catalyst microsphere particles 17 are catalyst particles with a micrometer or nanometer scale, and the size of the catalyst microsphere particles 17 is usually smaller than the salt precipitation microsphere particles 16. After the organic waste liquid undergoes secondary salt precipitation treatment, it flows through the catalyst microsphere particles 17, and the catalyst is used to further promote the oxidation of residual small molecules.

[0051] In order to distinguish the catalyst microsphere particles 17 from the salt-precipitating microsphere particles 16, the diameter of the sieve holes of the sieve plate 62 is set to be larger than the diameter of the catalyst microsphere particles 17 and smaller than the diameter of the salt-precipitating microsphere particles 16, so that the salt-precipitating microsphere particles 16 are screened out and retained in the upper part of the shell 61, and the catalyst microsphere particles 17 are screened out to the lower part of the shell 61.

[0052] It should be noted that since the integrated device for inorganic reaction and desalination of organic waste liquid is mainly used to desalinate the waste liquid after the oxidation reaction, and on this basis, further catalyze the oxidation reaction, the number of salt-precipitating microsphere particles 16 is much larger than the catalyst microsphere particles 17, and the sieve plate 62 is arranged in the middle and lower part of the shell 61 to reserve sufficient space for the salt-precipitating microsphere particles 16 above the sieve plate 62.

[0053] Optionally, a flushing port 611 and a saline outlet 612 are provided on the shell 61 , wherein the flushing port 611 is located at an upper portion of the shell 61 , and the saline outlet 612 is provided at a lower portion of the shell 61 .

[0054] Optionally, a salt precipitation microsphere discharge port 613 is provided on the shell 61 near the sieve plate 62 , and a catalyst microsphere discharge port 614 is provided at the lower part of the shell 61 .

[0055] Specifically, compressed air is sprayed intermittently multiple times from the flushing port 611 to disturb the microsphere particles, so that the catalyst microsphere particles 17 with smaller particles pass through the sieve plate 62 and fall into the lower part of the housing 61, thereby separating the microsphere particles. The filtered brine flows out from the brine outlet 612, the salt precipitation microsphere particles 16 are discharged from the salt precipitation microsphere outlet 613, and the catalyst microsphere particles 17 are discharged from the catalyst microsphere outlet 614. It should be noted that the salt precipitation microsphere outlet 613 and the catalyst microsphere outlet 614 can be connected to the reactant outlet 15, and the cleaned salt precipitation microsphere particles 16 and the catalyst microsphere particles 17 can be refilled into the second gap for reuse.

[0056] Optionally, an exhaust port 615 is provided at the upper portion of the shell 61 , and a back pressure valve 616 is provided at the exhaust port 615 , and the excess gas phase is discharged through the pipeline exhaust port 615 connected to the pressure relief valve.

[0057] Optionally, a replaceable salt pan 18 is provided at the bottom of the second gap, and the salt pan 18 is flange-connected to the inner wall of the inner body 1 for containing salt-precipitating microsphere particles 16 and catalyst microsphere particles 17 to prevent the inorganic salts adsorbed by the salt-precipitating microsphere particles 16 from corroding the inner wall of the inner body 1.

[0058] Optionally, the integrated device for inorganic reaction and desalination of organic waste liquid also includes an inlet and outlet pressure difference detector and an inner cavity temperature detector, the inlet and outlet pressure difference detector is used to detect the pressure difference between the reactant outlet and the inner cavity of the reactor, and the inner cavity temperature detector is used to detect the reaction temperature of the third gap.

[0059] Specifically, in the second gap, as the salt adsorbed by the salt-removing microsphere particles 16 increases, the pressure difference of the reaction fluid with the same flow rate becomes larger. The larger the pressure difference detected by the outlet pressure difference detector 7, the worse the salt reverse precipitation effect will be. At the same time, the reactor inlet pressure will be raised. When the set pressure difference reaches 2MPa, the microsphere particles need to be regenerated, that is, the microsphere particles in the second gap need to be cleaned.

[0060] The inner cavity temperature detector is used to detect the temperature of the supercritical water oxidation reaction in the inner permeable pipe 12, so as to control the operation process of the inorganic reaction of organic waste liquid and the desalination integrated device.

[0061] Optionally, the area where the corrosion-resistant plate 13 overlaps with the inner water-permeable pipe 12 is made of corrosion-resistant steel material, and the area where the corrosion-resistant plate 13 overlaps with the third gap is made of permeable material.

[0062] Specifically, the corrosion-resistant plate 13 may be made of, but not limited to, nickel-based alloy, Hastelloy, water-permeable material, and the like.

[0063] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An integrated device for inorganic reaction and desalination of organic waste liquid, characterized in that: The invention comprises an inner body (1), an outer body (2) and a particle discharge device (3), wherein the inner body (1) is arranged inside the outer body (2), and a first gap is left between the inner body (1) and the outer body (2), and the first gap is used to fill cooling water; one end of the particle discharge device (3) is connected to the particle discharge port of the inner body (1), and the other end is arranged outside the outer body (2); An outer water permeable pipe (11) and an inner water permeable pipe (12) are arranged inside the inner body (1); the outer water permeable pipe (11) and the inner water permeable pipe (12) have the same length and are shorter than the length of the inner body (1); a second gap is left between the outer water permeable pipe (11) and the inner body (1); the second gap is used to fill salt precipitation microsphere particles (16); the inner water permeable pipe (12) is arranged inside the outer water permeable pipe (11); a third gap is left between the inner water permeable pipe (12) and the outer water permeable pipe (11); the third gap is connected to the first gap; corrosion-resistant plates (13) are arranged at the bottom of the inner water permeable pipe (12) and the outer water permeable pipe (11); a through hole is opened on the corrosion-resistant plate (13) for connecting the inside of the inner water permeable pipe (12) and the second gap; The inner body (1) is provided with a reactant inlet (14) and a reactant outlet (15), wherein one end of the reactant inlet (14) is connected to the inner water-permeable pipe (12), and the other end extends out of the outer body (2); one end of the reactant outlet (15) is connected to the second gap, and the other end extends out of the outer body (2); The outer body (2) is provided with a cooling water inlet (21) and a cooling water outlet (22).

2. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 1, characterized in that: A first annular baffle (4) and a second annular baffle (5) are arranged in the second gap at intervals, the first annular baffle (4) is arranged on the inner wall of the inner body (1), and the second annular baffle (5) is arranged on the outer wall of the outer water-permeable pipe (11), and the projections of the first annular baffle (4) on the second annular baffle (5) partially overlap.

3. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 2, characterized in that: The first annular baffle (4) and the second annular baffle (5) are both arranged to be tilted downward, and the tilt angle is 45 to 75 degrees.

4. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 1, characterized in that: It also includes a separation washer (6), the separation washer (6) including a shell (61) and a sieve plate (62), the inlet of the shell (61) is connected to the particle discharge device (3), and the sieve plate (62) is arranged in the middle of the shell (61); The second gap is also filled with catalyst microsphere particles (17), the diameter of the salt precipitation microsphere particles (16) is larger than the diameter of the catalyst microsphere particles (17), and the diameter of the sieve holes on the sieve plate (62) is larger than the diameter of the catalyst microsphere particles (17) and smaller than the diameter of the salt precipitation microsphere particles (16).

5. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 4, characterized in that: The housing (61) is provided with a flushing port (611) and a saline outlet (612), wherein the flushing port (611) is located at the upper part of the housing (61), and the saline outlet (612) is provided at the lower part of the housing (61).

6. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 4, characterized in that: A salt precipitation microsphere discharge port (613) is provided on the shell (61) at a position close to the sieve plate (62), and a catalyst microsphere discharge port (614) is provided at the lower part of the shell (61).

7. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 4, characterized in that: An exhaust port (615) is provided at the upper portion of the housing (61), and a back pressure valve (616) is provided at the exhaust port (615).

8. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 4, characterized in that: A salt pan (18) is provided at the bottom of the second gap, and the salt pan (18) is used to contain the salt precipitation microsphere particles (16) and the catalyst microsphere particles (17).

9. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 1, characterized in that: It also includes an inlet and outlet pressure difference detector (7) and an inner cavity temperature detector (8), wherein the inlet and outlet pressure difference detector (7) is used to detect the pressure difference between the reactant outlet (15) and the inner cavity of the reactor, and the inner cavity temperature detector (8) is used to detect the reaction temperature in the inner water permeable pipe (12).

10. The integrated device for inorganic reaction and desalination of organic waste liquid according to claim 1, characterized in that: The area where the corrosion-resistant plate (13) overlaps with the inner water-permeable pipe (12) is made of corrosion-resistant steel material, and the area where the corrosion-resistant plate (13) overlaps with the third gap is made of water-permeable material.

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