Slurry carbonization and flocculation treatment device

Abstract

The utility model provides a mud carbonization flocculation treatment device, including seal cover, interface flange, organic glass barrel and bottom plate, interface flange, organic glass barrel and bottom plate are bonded and then form an integral structure with the seal cover through fastening device, interface flange is bonded with organic glass barrel through sealant, and the bottom plate and the seal cover form an integral structure through fastening device. The bottom plate is bonded with the organic glass barrel through a sealant, and an air inlet hole and a pollution discharge hole are formed in the bottom plate. The device has the advantages of reasonable structure, high pressure resistance, capability of directly observing the test condition in the barrel, easiness in replacement of accessories, low manufacturing cost and simplicity in operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slurry treatment, and specifically relates to a slurry carbonization flocculation treatment device. BACKGROUND

[0002] The massive emission of carbon dioxide is one of the main reasons for the global temperature rise, and protecting the earth's environment has become the consensus of the world. In 2020, China proposed the goal of "striving to reach the peak of carbon dioxide emissions by 2030 and striving to achieve carbon neutrality by 2060". In order to achieve the goal of the double carbon strategy, the whole society needs to work together, especially the pillar industries of the national economy such as petroleum chemical industry, civil construction, transportation and water conservancy.

[0003] The amount of high water content slurry dredged by China every year is as high as several hundred million cubic meters, among which the amount of dredged slurry of the Yangtze River estuary deepwater channel regulation project reaches 320 million m 3 ; the total amount of dredging of the dredging sub-projects of the Hong Kong-Zhuhai-Macao Bridge project is about 47.8 million m 3 ; the amount of dredging and desilting of the five sub-lakes of Wuhan South Lake and East Lake reaches 6.0415 million m 3 ; the amount of dredged slurry of the second phase of the Wenzhou Oujiang Estuary Industrial Agglomeration Area is about 5.7 million m 3 ; the amount of river dredging in Qingpu District of Shanghai in 2018 is as high as 3.5 million m 3 . A large amount of high water content slurry cannot be arbitrarily stacked or discarded, and a suitable storage site or treatment method needs to be found. Regardless of which disposal method, the water content of the slurry needs to be reduced first.

[0004] In recent years, people have introduced chemical flocculating agents into the treatment of high water content slurry, which greatly reduces the water content of the slurry through flocculation of the agents, and realizes efficient reduction. The commonly used inorganic chemical flocculants are CaO and Ca(OH)2, and the flocculation mechanism includes: 1) Ca 2+ ions in the slurry compress the diffusion double layer of soil particles, and thin the thickness of the hydration film; 2) the pozzolanic reaction generates cementing materials such as hydrated calcium silicate and hydrated calcium aluminate, which cement the soil particles together to form larger particles to cause flocculation; 3) CaO and Ca(OH)2 react with CO2 to generate calcium carbonate (CaCO3) cementing bodies, and the CaCO3 cementing bodies attached to the surface of the soil particles play a connecting role, and CO2 can exist in the soil in the form of a compound for a long time.

[0005] In the flocculation treatment process of high water content slurry, CO2 gas is added to change the composition of elements and compounds in the slurry, as well as the particle size and connection mode of soil particles, the size, shape and connectivity of pores and other microstructures, and further change the macroscopic properties such as consolidation, permeability, compression and strength of the slurry, which is a new type of high water content slurry treatment method different from the current treatment method and integrating the concept of carbon sequestration.

[0006] This new type of mud treatment method needs further in-depth, comprehensive exploration and improvement. The pH value will decrease after the CO2 is introduced, which will enhance the carbonization reaction in flocculation, but will hinder the occurrence of the pozzolanic reaction. The calcium-based agent needs Ca 2+ The ions play the role of electric neutralization, compress the electric double layer, cause the soil particles to aggregate, flocculate and precipitate, so the early introduction of CO2 will inevitably affect the flocculation of the agent. It can be seen that there is an extremely complex interaction between the carbonization reaction and the flocculation, and the influence mechanism between the carbon fixation and the flocculation performance is unclear, which leads to a great loss in the practical application value of this new type of method.

[0007] In summary, the carbonization flocculation as a new type of mud dewatering treatment method has many problems. Therefore, on the basis of developing related equipment, the correlation between the key process parameters such as the agent dosage, the CO2 aeration time and the aeration pressure and the mud treatment effect is obtained, the carbonization flocculation characteristics of the multi-parameter coupling are determined, the process parameter optimization method is established, the basis and reference for the high-water-content mud treatment site construction are provided, and the application value of the carbonization flocculation treatment method is gradually improved. Practical new type content

[0008] Therefore, the problem to be solved by the present application is to provide a mud carbonization flocculation treatment device.

[0009] To solve the above technical problems, the technical scheme adopted by the present application is: a mud carbonization flocculation treatment device, comprising a cover, an interface flange, an organic glass barrel and a bottom plate, the interface flange, the organic glass barrel and the bottom plate are bonded to form an integral structure with the cover through a fastening device, the interface flange is bonded to the organic glass barrel through sealing glue, the bottom plate is bonded to the organic glass barrel through sealing glue, and the bottom plate is provided with an air inlet hole and a pollution discharge hole.

[0010] In the present application, preferably, the cover is provided with a bolt hole, a lifting eye hole, a pressure gauge hole, an exhaust hole and an air extraction hole, the lifting eye hole is provided with a lifting eye through screw thread, the pressure gauge hole is provided with a digital positive and negative pressure gauge through screw thread, the exhaust hole is provided with a three-way valve through screw thread, and the air extraction hole is provided with a vacuum quick-release interface through screw thread.

[0011] In the present application, preferably, the air inlet hole is provided with an air path conversion valve through screw thread, and the pollution discharge hole is provided with a pollution discharge valve through screw thread.

[0012] In the present application, preferably, the air inlet hole is arranged at the center of the bottom plate, and a circulating aeration disc is arranged on the air inlet hole, and the circulating aeration disc is wrapped with a filter membrane.

[0013] In the utility model, preferably, the three-way valve is equipped with a closing port and two open ports, one of the open ports is connected with a CO2 pressure reducer through a stainless steel hose, and the other open port is respectively connected with a check valve, a brushless piston pump, a two-position three-way electromagnetic valve, a check valve and a flowmeter through a stainless steel hose, and the flowmeter is connected to an interface of the gas path conversion valve.

[0014] In the utility model, preferably, the gas path conversion valve is respectively connected with the flowmeter and the CO2 pressure regulating valve through the stainless steel hose, and the end of the stainless steel hose is connected with a CO2 storage steel cylinder.

[0015] In the utility model, preferably, the CO2 pressure reducer and the stainless steel hose connected to the three-way valve constitute an exhaust gas path.

[0016] In the utility model, preferably, the stainless steel hose connected to the three-way valve is sequentially connected with the check valve, the brushless piston pump, the two-position three-way electromagnetic valve, the check valve and the flowmeter, and the other end is connected to the gas path conversion valve to constitute a circulating gas path.

[0017] In the utility model, preferably, one end of the CO2 pressure regulating valve is connected to the CO2 storage steel cylinder, and the other end of the CO2 pressure regulating valve is connected to the flowmeter connected between the stainless steel hose and the pipeline of the gas path conversion valve to constitute an inlet gas path.

[0018] In the utility model, preferably, the bottom of the bottom plate is fixedly connected with a sliding support.

[0019] The utility model has the advantages and positive effects that: through the cooperation between the cover, the interface flange, the organic glass barrel and the bottom plate, the interface flange, the organic glass barrel and the bottom plate are bonded and then form an integral structure with the cover through the fastening device, the interface flange is bonded with the organic glass barrel through sealing glue, the bottom plate is bonded with the organic glass barrel through sealing glue, air inlet holes and sewage holes are arranged on the bottom plate, the device has reasonable structure, high pressure resistance, can directly observe the test condition in the barrel, the accessories are easy to replace, the cost is low, and the operation is simple. ACCURACY

[0020] The accompanying drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0021] Figure 1 It is the overall structure diagram of the mud carbonization flocculation treatment device of the utility model;

[0022] Figure 2 It is the sectional view of the mud carbonization flocculation treatment device of the utility model;

[0023] Figure 3 is a structure diagram of a sealing cover of the mud carbonization flocculation treatment device of the utility model;

[0024] Figure 4 is a structure diagram of a steel protective sleeve of the mud carbonization flocculation treatment device of the utility model;

[0025] In the figure: 1, sealing cover; 101, bolt hole; 102, lifting eyelet hole; 103, pressure gauge hole; 104, exhaust hole; 105, air extraction hole; 2, interface flange; 3, organic glass barrel; 4, bottom plate; 401, air inlet hole; 402, sewage discharge hole; 5, sliding support; 501, universal wheel; 502, load bearing support; 6, fastening device; 601, screw rod; 602, fastening nut; 7, digital display positive and negative pressure gauge; 8, three-way valve; 9, vacuum quick release interface; 10, lifting eyelet; 11, steel protective sleeve, 1101, observation window, 1102, scale; 12, CO2 pressure reducer; 13, sealing ring; 14, one-way valve; 15, brushless piston pump; 16, two-position three-way electromagnetic valve; 17, flow meter; 18, CO2 pressure regulating valve; 19, gas path switching valve; 20, sewage valve; 21, circulating aeration disc; 2101, filter membrane; 22, CO2 storage steel cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for purposes of description only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "including", "comprising", "having" and the like are meant to encompass the items listed thereafter as well as other items.

[0029] As shown in Figure 1 The mud carbonization flocculation treatment device provided by the application comprises a cover 1, an interface flange 2, an organic glass barrel 3 and a bottom plate 4. The interface flange 2, the organic glass barrel 3 and the bottom plate 4 are bonded and then form an integral structure with the cover 1 through fastening devices 6. The interface flange 2 is bonded to the organic glass barrel 3 through sealing glue. The bottom plate 4 is bonded to the organic glass barrel 3 through sealing glue. The bottom plate 4 is provided with an air inlet hole 401 and a sewage outlet hole 402. The cover 1 is a steel cover with a thickness of 40 mm and a diameter of 520 mm. The inner diameter of the interface flange 2 is 340 mm. The outer diameter of the organic glass barrel 3 is 520 mm. The inner diameter of the organic glass barrel 3 is 400 mm. The wall thickness of the organic glass barrel 3 is 30 mm. The height of the organic glass barrel 3 is 600 mm. The bottom plate 4 is a steel bottom plate with a thickness of 40 mm and a diameter of 520 mm. The fastening devices 6 comprise 14 mm diameter bolts. The bottom plate 4 is provided with the air inlet hole 401 with a Φ8 mm internal thread and the sewage outlet hole 402 with a Φ20 mm internal thread. The interface flange 2 is provided with a groove with a width of 30 mm and a depth of 20 mm. The groove is clamped on the upper part of the organic glass barrel 3 and is reliably bonded through sealing glue. The bottom plate 4 is provided with a reinforcing rib with a width of 30 mm and a height of 30 mm along the outer wall of the organic glass barrel 3. The inner side of the reinforcing rib is attached to the outer wall of the organic glass barrel 3 and is reliably bonded to the bottom of the organic glass barrel 3 through sealing glue.

[0030] As shown in Figure 3 In this embodiment, further, the cover 1 is provided with a bolt hole 101, a lifting eye hole 102, a pressure gauge hole 103, an exhaust hole 104 and a vacuum hole 105. The lifting eye hole 102 is provided with a lifting eye 10 through threaded installation. The pressure gauge hole 103 is provided with a digital positive and negative pressure gauge 7 with a range of -100 kpa ~ 2 MPa through threaded installation. The exhaust hole 104 is provided with a three-way valve 8 through threaded installation. The vacuum hole 105 is provided with a vacuum quick-release interface 9 through threaded installation. The cover 1 is provided with the Φ14 mm bolt hole 101, the Φ8 mm internal thread lifting eye hole 102, the Φ20 mm internal thread pressure gauge hole 103, the Φ8 mm internal thread exhaust hole 104 and the Φ8 mm internal thread vacuum hole 105.

[0031] As shown in Figure 2 In this embodiment, further, the air inlet hole 401 is provided with an air path conversion valve 19 through threaded installation. The sewage outlet hole 402 is provided with a sewage valve 20 through threaded installation.

[0032] In the embodiment, further, the air inlet hole 401 is arranged at the center of the bottom plate 4, the circulating aerator 21 is arranged on the air inlet hole 401, the circulating aerator 21 is wrapped with the filter membrane 2101, the Φ180mm titanium alloy circulating aerator 21 is arranged on the end of the air inlet hole 401 at the center of the bottom plate 4, the circulating aerator 21 is wrapped with the replaceable filter membrane 2101, and the filter membrane 2101 has a pore size of 5um.

[0033] In the embodiment, further, the three-way valve 8 is provided with a closed port and two open ports, one open port is connected with the CO2 pressure reducer 12 through a Φ8mm stainless steel hose, and the other open port is connected with the one-way valve 14, the brushless piston pump 15, the two-position three-way electromagnetic valve 16, the one-way valve 14 and the flow meter 17 through stainless steel hoses respectively, and the flow meter 17 is connected to one interface of the gas path conversion valve 19.

[0034] In the embodiment, further, the gas path conversion valve 19 is connected with the flow meter 17 and the CO2 pressure regulating valve 18 through stainless steel hoses, and the end of the stainless steel hose is connected with the CO2 storage steel cylinder 22.

[0035] In the embodiment, further, the CO2 pressure reducer 12 and the stainless steel hose connected to the three-way valve 8 constitute an exhaust gas path.

[0036] In the embodiment, further, the stainless steel hose connected to the three-way valve 8 is sequentially connected with the one-way valve 14, the brushless piston pump 15, the two-position three-way electromagnetic valve 16, the one-way valve 14 and the flow meter 17, and the other end is connected to the gas path conversion valve 19 to constitute a circulating gas path.

[0037] In the embodiment, further, one end of the CO2 pressure regulating valve 18 is connected to the CO2 storage steel cylinder, the other end of the CO2 pressure regulating valve 18 is connected to the flow meter 17 connected between the stainless steel hose and the pipeline of the gas path conversion valve 19 to constitute an air inlet gas path.

[0038] In the embodiment, further, the bottom of the bottom plate 4 is fixedly connected with the sliding support 5, and the bottom of the sliding support 5 is provided with four lockable universal wheels.

[0039] The working principle and working process of the utility model are as follows: first, all the valves are adjusted to the closed state, the fastening nut 602 on the fastening device 6 is unscrewed, the cover 1 is opened by using the chain hoist provided on the lifting platform to hook the lifting ring 10, the mud with a certain medicament is slowly poured into the organic glass barrel 3, the mud is uniformly stirred by using the constant speed stirrer, the cover 1 is covered and the fastening nut 602 is tightened, and then Figure 4As shown, the mud mixing state can be observed in real time through the window 1101, the value of the slurry-water interface on the scale 1102 is recorded continuously, 10 min before reaching the CO2 design aeration time point in the test scheme, the vacuum pipe is inserted on the vacuum quick release interface 9, the vacuum pump is opened to vacuum to the pressure of the digital pressure gauge 7, and the pressure is stable, when reaching the CO2 design aeration time point in the test scheme, the vacuum air path is closed, the flowmeter connected on the CO2 pressure regulating valve 18 is zeroed, the valve on the CO2 storage steel cylinder 22 is opened, the CO2 pressure regulating valve 18 is adjusted to 50kPa, when the pressure of the digital pressure gauge 7 is stable, the pressure is increased in stages to the test design pressure according to the increment of 100 kPa, the pressure value of the digital pressure gauge 7 is monitored continuously during the period, and the next pressure increasing stage is entered after the value is stable, the pressure value of the digital pressure gauge, the flowmeter reading and the slurry-water interface position are recorded continuously during the period, when reaching the CO2 circulation time of the test design, the three-way valve 8 is adjusted to circulation, the air path conversion valve 19 is adjusted to circulation, the brushless piston pump 15 is opened, the power knob is adjusted to make the circulation flow constant to the design value, after a certain time, the three-way valve 8, the air path conversion valve 19 and the brushless piston pump 15 are closed, and the step is implemented again at the next design circulation time point, when the slurry-water interface has no obvious change within 12h, the CO2 pressure reducer 12 is adjusted to 20kPa, the three-way valve 8 is adjusted to the exhaust state, when the pressure of the digital pressure gauge 7 is 0, the cover 1 is opened to sample the liquid and the floe at different positions, the remaining mud is taken out, and the sewage valve 20 is opened, the test device is washed with clean water, and the test is ended.

[0040] The embodiments of the utility model are described in detail above, but the content described can only be the preferred embodiments of the utility model, and cannot be considered as being used for limiting the implementation range of the utility model. Any equivalent change and improvement in the range of the utility model should still belong to the scope covered by the patent.

Claims

1. A slurry carbonation flocculation treatment apparatus, characterized by, The utility model relates to a kind of organic glass aeration tank, including cover (1), interface flange (2), organic glass barrel (3) and bottom plate (4), the interface flange (2), the organic glass barrel (3) and the bottom plate (4) are bonded and are formed into integral structure by fastening device (6) with the cover (1) after, the interface flange (2) is bonded with the organic glass barrel (3) by sealing glue, the bottom plate (4) is bonded with the organic glass barrel (3) by sealing glue, air inlet hole (401) and pollution discharge hole (402) are equipped on the bottom plate (4); Screw hole (101), lifting eye (102), pressure gauge hole (103), exhaust hole (104) and air extraction hole (105) are equipped on the cover (1), lifting eye (102) is installed with lifting eye (10) by thread, pressure gauge hole (103) is installed with digital positive and negative pressure gauge (7) by thread, exhaust hole (104) is installed with three-way valve (8) by thread, air extraction hole (105) is installed with vacuum quick-release interface (9) by thread.

2. A slurry carbonation flocculation treatment device according to claim 1, wherein Air inlet hole (401) is installed with air path conversion valve (19) by thread, and pollution discharge hole (402) is installed with pollution discharge valve (20) by thread.

3. A slurry carbonization flocculation treatment device according to claim 1, characterized by, Air inlet hole (401) is arranged at the center of the bottom plate (4), and circulating aeration disc (21) is installed on air inlet hole (401), and filter membrane (2101) is wrapped outside circulating aeration disc (21).

4. A slurry carbonization flocculation treatment device according to claim 1, characterized by Three-way valve (8) is provided with a closed port and two open ports, one of the open ports is connected with CO2 pressure reducer (12) by stainless steel hose, and the other open port is respectively connected with one-way valve (14), brushless piston pump (15), two-position three-way electromagnetic valve (16), one-way valve (14) and flowmeter (17) by stainless steel hose, and the end of flowmeter (17) is connected to one interface of air path conversion valve (19).

5. A slurry carbonation flocculation treatment device according to claim 2, wherein Air path conversion valve (19) is respectively connected with flowmeter (17) and CO2 pressure regulating valve (18) by stainless steel hose, and the end of the stainless steel hose is connected with CO2 storage steel cylinder (22).

6. A slurry carbonization flocculation treatment device according to claim 4, characterized by CO2 pressure reducer (12) and the stainless steel hose connected to three-way valve (8) constitute an exhaust gas path.

7. A slurry carbonation flocculation treatment apparatus according to claim 4, wherein The stainless steel hose connected to three-way valve (8) is sequentially connected with one-way valve (14), brushless piston pump (15), two-position three-way electromagnetic valve (16), one-way valve (14), flowmeter (17), and the other end is connected to air path conversion valve (19) to form a circulating gas path.

8. A slurry carbonation flocculation treatment apparatus according to claim 5, wherein One end of CO2 pressure regulating valve (18) is connected to CO2 storage steel cylinder, and the other end of CO2 pressure regulating valve (18) is connected to flowmeter (17) connected to the middle of the stainless steel hose and pipeline of air path conversion valve (19) to form an air inlet path.

9. A slurry carbonation flocculation treatment device according to claim 1, wherein The bottom of the bottom plate is fixedly connected with sliding support (5).

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