Energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry

Abstract

The invention discloses an energy-saving and environment-friendly chemical vacuum normal-temperature wastewater evaporation device which comprises a treatment cylinder and a filtering assembly, the filtering assembly comprises a front end pipe, a middle pipe and a rear end pipe, and the front end pipe, the middle pipe and the rear end pipe are in sealed butt joint in sequence; corresponding filtering parts are arranged in the front end pipe, the middle pipe and the rear end pipe respectively, the rear end pipe is suitable for guiding liquid into the treatment cylinder, the vacuum chamber is connected with the treatment cylinder through a water inlet pipe, the vacuum chamber is suitable for introducing the liquid in the treatment cylinder and performing vacuum evaporation, and the vacuum chamber is suitable for introducing the liquid in the treatment cylinder through a water outlet pipe. The condensation assembly is connected with the vacuum chamber, the condensation assembly is suitable for converting steam in the vacuum chamber into liquid, wastewater entering the equipment is subjected to multi-stage filtering treatment in a flow dividing mode, and the evaporation efficiency and the quality of the finally obtained liquid are improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment devices, in particular to an energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry. Background Art

[0002] At present, with the rapid development of the chemical industry, wastewater treatment has become an increasingly important environmental issue. Most of the existing wastewater evaporation devices use a single evaporation technology, such as direct heating evaporation or simple vacuum evaporation, which usually cannot effectively remove tiny heavy metal particles, suspended matter and soluble harmful substances in wastewater. At the same time, the energy consumption is high, and the treated water quality is difficult to meet environmental protection standards or reuse requirements.

[0003] After searching, it was found that the Chinese utility model patent with the authorization announcement number CN209619098U disclosed an energy-saving and environmentally friendly vacuum normal temperature wastewater evaporation device. The patent removes harmful gases in the wastewater through aeration and treats the discharge, and combines vacuum technology to reduce the boiling point of water to reduce energy consumption, thereby achieving efficient, low-consumption and environmentally friendly treatment of wastewater. The device has a compact structure, stable performance, and significant energy-saving and environmental protection effects; however, the patent is too simplistic in its treatment of wastewater, and it is impossible to perform multi-stage filtration on the wastewater entering the device. Excessive impurities in the wastewater will affect the subsequent evaporation effect and increase the damage to the equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art, and the wastewater entering the equipment is subjected to multi-stage filtering treatment by means of diversion, thereby improving the evaporation efficiency and the quality of the liquid finally obtained.

[0005] In order to solve the above technical problems, the technical solution of the present invention is an energy-saving and environmentally friendly vacuum normal temperature wastewater evaporation device for chemical industry, comprising:

[0006] treatment cartridge;

[0007] A filter assembly, the filter assembly comprising a front end tube, a middle tube and a rear end tube, the front end tube, the middle tube and the rear end tube are sealed and butted in sequence, and corresponding filter components are respectively arranged inside the front end tube, the middle tube and the rear end tube;

[0008] The rear end tube is connected to the treatment cylinder to guide the liquid to the interior of the treatment cylinder;

[0009] A vacuum chamber, wherein the vacuum chamber is connected to the treatment cylinder via a water inlet pipe, and the vacuum chamber is suitable for allowing the liquid in the treatment cylinder to pass through and evaporate under vacuum;

[0010] A condensation component is connected to the vacuum chamber and is suitable for converting the steam in the vacuum chamber into liquid.

[0011] Further, the filter component in the front end tube includes an inner sleeve, and the inner sleeve is detachably installed inside the front end tube;

[0012] At least one filter slot is provided in the inner sleeve, and a filter screen 1 is provided in the filter slot;

[0013] The inner sleeve is connected with a second filter screen at one end close to the middle tube.

[0014] Further, the filter component in the intermediate tube includes a conical filter screen;

[0015] The conical filter screen is divided into a conical portion and a supporting portion, and filtering holes are provided on both the conical portion and the supporting portion;

[0016] The large-diameter end of the tapered portion and the support portion are both connected to the inner wall of the intermediate tube, and the small-diameter end of the tapered portion is connected to the center position of the support portion.

[0017] Further, the filtering component in the rear end tube includes two partition screens;

[0018] The two partitions are both connected to the inner wall of the rear end tube, and a placement space is formed between the two partitions. The interior of the placement space is suitable for filling adsorption material.

[0019] Further, the wastewater evaporation device also includes a sedimentation device and a collection box;

[0020] The collection box is located at the bottom of the treatment cylinder;

[0021] The sedimentation device is suitable for separating impurities generated by the liquid in the treatment cylinder, and the collection box is suitable for storing the impurities separated by the sedimentation device.

[0022] Further, the precipitation device includes a precipitation component 1, and the precipitation component 1 is located inside the treatment cylinder;

[0023] The first sedimentation component comprises a coarse filter disc and a coarse baffle disc, and the outer peripheral surface of the coarse filter disc is fixedly connected to the inner wall of the treatment cylinder;

[0024] The coarse filter disc and the coarse retaining disc are each provided with at least one coarse hole penetrating through the coarse filter disc, the coarse retaining disc is rotatably mounted on the bottom of the coarse filter disc, the coarse retaining disc is adapted to be driven by a driving assembly to rotate so as to close the coarse hole on the coarse filter disc, and a coarse sedimentation chamber is formed between the coarse filter disc and the bottom wall of the treatment barrel after the coarse filter disc is closed, and a shunt pipe 1 is provided on the outside of the treatment barrel, and the shunt pipe 1 is adapted to connect the internal space of the collection box and the coarse sedimentation chamber;

[0025] The driving assembly comprises a driving bevel gear 1, a driven bevel gear 1 and a driving device 1;

[0026] The driving device 1 is located outside the treatment cylinder, and the driving device 1 is suitable for being connected to the driving bevel gear 1 through a coupling;

[0027] The driven bevel gear 1 is connected to the bottom of the coarse stopper, the driven bevel gear 1 is meshed with the driving bevel gear 1, and the driving device 1 is suitable for driving the driving bevel gear 1 to rotate so as to drive the driven bevel gear 1 and the coarse stopper to rotate;

[0028] A coarse slope is provided between the upper surface of the coarse filter disc and the coarse holes.

[0029] Furthermore, the precipitation device further comprises a precipitation component 2, wherein the precipitation component 2 comprises a driving gear 1, a driven gear 1 and a stirring component, and a feeding component is arranged on the driven gear 1;

[0030] The driving gear 1 is located outside the treatment cylinder, the driven gear 1 is rotatably mounted on the top of the treatment cylinder, the driving gear 1 and the driven gear 1 are meshed and connected, the stirring assembly is connected to the driven gear 1, the stirring assembly is located inside the treatment cylinder, and the driving gear 1 is suitable for being driven by the driving assembly to rotate so as to drive the driven gear 1 and the stirring assembly to rotate;

[0031] The driving assembly includes a second driving device, a second driving bevel gear, a rotating rod and a second driven bevel gear. The second driving device is installed on the collection box. The rotating rod is rotatably installed on the collection box. The second driving device is connected to the second driving bevel gear through a coupling. The second driven bevel gear is fixedly sleeved on the outer circumference of the rotating rod. The second driving bevel gear is meshed and connected with the second driven bevel gear. The top of the rotating rod is connected to the bottom of the first driving gear.

[0032] The stirring assembly includes a feed pipe, a second driving gear, and at least one connecting ring. The feed pipe is located inside the processing cylinder. A portion of the feed pipe passes through the inside of the processing cylinder and is connected to the bottom of the first driven gear. The second driving gear and the connecting ring are both fixedly sleeved on the outer circumference of the feed pipe. The bottom of the connecting ring is rotatably mounted with the second driven gear. The inside of the processing cylinder is connected with an external toothed disk. The second driven gear and the second driving gear are both located inside the external toothed disk. The second driven gear is meshed and connected with the second driving gear and the external toothed disk respectively. The bottom of the second driven gear is connected with a stirring rod.

[0033] The feed assembly includes a feed port, which is connected to the top of the driven gear 1, the feed pipe is hollow, the feed port is communicated with the inner cavity of the feed pipe, and the feed pipe is provided with a plurality of discharge holes penetrating the feed pipe;

[0034] The processing cylinder is connected with an air outlet pipe, and the air outlet pipe is suitable for absorbing the gas generated in the processing cylinder. The air outlet end of the air outlet pipe is connected with a gas purifier.

[0035] Further, a sedimentation assembly 3 is arranged inside the treatment cylinder, and the sedimentation assembly 3 includes a one-way bearing, a connecting rod, a fine filter disc and a fine baffle disc;

[0036] The one-way bearing is suitable for connecting the connecting rod and the feed pipe, the fine filter disc is fixedly connected to the inner wall of the treatment cylinder, the connecting rod passes through the interior of the fine filter disc, the bottom of the connecting rod is connected to the top of the fine baffle disc, and the fine baffle disc is rotatably mounted on the bottom of the fine filter disc;

[0037] The fine filter disc and the fine baffle disc are each provided with at least one fine hole penetrating through the fine filter disc, and the connecting rod is adapted to be driven to rotate by the feed pipe and then drive the fine baffle disc to rotate so as to close the fine hole on the fine filter disc;

[0038] A fine sedimentation chamber is formed between the fine filter disc and the coarse filter disc after being sealed, and a second shunt pipe is connected to the outside of the treatment cylinder, and the second shunt pipe is suitable for connecting the internal space of the collection box and the fine sedimentation chamber;

[0039] A fine slope is arranged between the fine hole and the upper surface of the fine filter disc.

[0040] Further, the interior of the vacuum chamber includes a heating component and a mixing component;

[0041] The heating assembly comprises a heating device and a temperature sensor, wherein the heating device is inside the vacuum chamber and the temperature sensor is mounted on the outer peripheral surface of the vacuum chamber;

[0042] The mixing assembly includes a stirring disk, and the stirring disk is rotatably mounted inside the vacuum chamber;

[0043] A driving device three is installed on the top of the vacuum chamber, and the driving device three is connected to the stirring disk to drive the stirring disk to rotate inside the vacuum chamber.

[0044] Further, the condensation assembly includes a cold cycle pipe sleeve and a condensation pipe;

[0045] The condenser is connected to the vacuum chamber, and the cold circulation pipe sleeve is arranged outside the condenser;

[0046] The cold circulation pipe sleeve is connected to an external circulation pump and a heat exchanger, and a cooling liquid is arranged inside the cold circulation pipe sleeve;

[0047] A vacuum pump is installed at one end of the condenser tube away from the vacuum chamber, and the vacuum pump is suitable for extracting the steam inside the vacuum chamber along the inside of the condenser tube;

[0048] A collecting plate is arranged inside the condenser tube, and the collecting plate is in a spiral shape inclined toward the vacuum pump.

[0049] By adopting the above technical solution, the present invention has the following beneficial effects:

[0050] 1. Through the setting of the front-end pipe, the middle pipe and the rear-end pipe in the filtering component, the wastewater entering the equipment is diverted and filtered respectively. The contact area between the wastewater and the filtering components is increased by diversion. At the same time, different filtering components are arranged inside each pipe, which realizes the effect of multi-stage filtration and improves the quality of filtration.

[0051] 2. Through the setting of the inner sleeve, conical filter screen and spacer screen, filter screen 1 and filter screen 2 are set in the inner sleeve to perform preliminary filtration on the wastewater. The conical filter screen increases the contact area between the wastewater and the filter screen and further filters it. The adsorption material added in each set of spacers adsorbs harmful substances in the wastewater. Through multiple filtration methods, the filtration effect is further improved.

[0052] 3. Through the setting of the coarse filter disc and the coarse baffle disc, after the wastewater is subjected to multi-stage filtration treatment, it enters the interior of the treatment cylinder. Inside the treatment cylinder, some of the larger and heavier particulate impurities in the wastewater will be precipitated at the bottom of the treatment cylinder through the coarse filter disc according to their own weight. After precipitation, the coarse filter disc is closed by the coarse baffle disc, and the sediment is separated from the water and flows to the interior of the collection box.

[0053] 4. Through the setting of the feed pipe and the stirring rod, the reagent is added into the inside of the treatment tube through the feed pipe and the wastewater and the reagent are continuously mixed through the stirring rod. In the mixing process, the smaller particles remaining from the first precipitation react with the reagent to produce the second precipitation and harmful gases. The harmful gases are filtered through the gas purifier. This part enhances the filtering effect with the assistance of the reagent.

[0054] 5. Through the setting of the fine filter disk and the fine baffle disk, the sediment produced during the second sedimentation will pass through the fine filter disk to the position between the fine filter disk and the coarse filter disk. After the sedimentation is completed, turn the fine baffle disk to close the fine filter disk. After closing, the sediment is separated from the water on the top of the fine filter disk and flows to the inside of the collection box.

[0055] 6. Through the setting of the heating device and the stirring plate, the filtered wastewater needs to be heated with steam in the vacuum chamber. The stirring plate rotates continuously while the heating device is working, which improves the uniformity of heating and the efficiency of heating, and can quickly vaporize the liquid.

[0056] 7. Through the setting of the collecting plate in the condenser, after the steam enters the condenser, it is absorbed by the cooling medium in the cold circulation pipe sleeve and liquefied. Through the inclined spiral design of the collecting plate, the collecting plate will increase the time for the steam to pass through, which can better cool down. The water droplets after liquefaction will not have the problem of backflow, and will be blocked by the spiral part, thereby improving the efficiency of collecting the liquid after condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0058] Figure 2 It is a schematic diagram of the distribution of the treatment cylinders of the present invention;

[0059] Figure 3 It is a schematic diagram of the overall structure of the filter assembly of the present invention;

[0060] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0061] Figure 5 It is a schematic diagram of the inner sleeve structure of the present invention;

[0062] Figure 6 It is a schematic diagram of the distribution structure of the precipitation device of the present invention;

[0063] Figure 7 It is a schematic diagram of the overall structure of the precipitation device of the present invention;

[0064] Figure 8 A schematic diagram of the structure of the precipitation component of the present invention Figure 1 ;

[0065] Fig. 9 A schematic diagram of the structure of the precipitation component of the present invention Figure 2 ;

[0066] Fig.10 The second structure of the precipitation component of the present invention is shown in FIG. Figure 1 ;

[0067] Fig.11 The second structure of the precipitation component of the present invention is shown in FIG. Figure 2 ;

[0068] Fig.12 It is a schematic diagram of the third structure of the precipitation component of the present invention;

[0069] Fig.13 It is a schematic diagram of the internal structure of the vacuum chamber of the present invention;

[0070] Fig.14 It is a schematic diagram of the internal structure of the condenser of the present invention.

[0071] In the figure: 1, filter assembly; 101, front end tube; 102, middle tube; 103, rear end tube; 104, inner sleeve; 105, filter screen 1; 106, filter screen 2; 107, cone filter screen; 108, cone portion; 109, support portion; 110, spacer;

[0072] 2. Processing cylinder; 3. Collection box;

[0073] 4. Vacuum chamber; 401. Heating device; 402. Driving device 3; 403. Stirring plate; 404. Temperature sensor;

[0074] 5. Condensation assembly; 501. Cold circulation pipe sleeve; 502. Condensation pipe; 503. Collection plate; 504. Vacuum pump;

[0075] 6. Sedimentation component 1; 601. Coarse filter plate; 602. Coarse hole; 603. Coarse inclined surface; 604. Driving device 1; 605. Active bevel gear 1; 606. Driven bevel gear 1; 607. Coarse baffle plate; 608. Diverter pipe 1;

[0076] 7. Sedimentation assembly 2; 701. Driving device 2; 702. Active bevel gear 2; 703. Driven bevel gear 2; 704. Rotating rod; 705. Active gear 1; 706. Driven gear 1; 707. Feed inlet; 708. Feed pipe; 709. Connecting ring; 710. Active gear 2; 711. Driven gear 2; 712. External gear disc; 713. Stirring rod; 714. Discharge hole;

[0077] 8. Sedimentation component three; 801. One-way bearing; 802. Connecting rod; 803. Fine filter plate; 804. Fine baffle plate; 805. Fine hole; 806. Fine slope; 807. Diverter pipe two;

[0078] 9. Water inlet pipe; 10. Air outlet pipe; 11. Gas purifier. DETAILED DESCRIPTION

[0079] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0080] Embodiment 1

[0081] like Figure 1-3 As shown, an energy-saving and environmentally friendly vacuum normal temperature wastewater evaporation device for chemical industry comprises:

[0082] Treatment tube 2;

[0083] The filter assembly 1 includes a front end tube 101, a middle tube 102 and a rear end tube 103, which are sealed and butted in sequence, and corresponding filter components are respectively arranged inside the front end tube 101, the middle tube 102 and the rear end tube 103;

[0084] The rear end pipe 103 is connected to the treatment cylinder 2 to guide the liquid to the interior of the treatment cylinder 2;

[0085] The vacuum chamber 4 is connected to the treatment cylinder 2 via a water inlet pipe 9, and the vacuum chamber 4 is suitable for the liquid in the treatment cylinder 2 to be introduced and evaporated in vacuum;

[0086] The condensation component 5 is connected to the vacuum chamber 4 and is suitable for converting the steam in the vacuum chamber 4 into liquid.

[0087] like Figure 3-5 As shown, the filter component in the front end tube 101 includes an inner sleeve 104, and the inner sleeve 104 is detachably installed inside the front end tube 101;

[0088] At least one filter tank is provided in the inner sleeve 104, and a filter screen 105 is provided in the filter tank;

[0089] A second filter screen 106 is connected to one end of the inner sleeve 104 close to the middle tube 102 .

[0090] like Figure 2 As shown, the filter component in the middle tube 102 includes a conical filter screen 107;

[0091] The conical filter screen 107 is divided into a conical portion 108 and a supporting portion 109, and filtering holes are provided on both the conical portion 108 and the supporting portion 109;

[0092] The large diameter end of the tapered portion 108 and the support portion 109 are both connected to the inner wall of the intermediate tube 102 , and the small diameter end of the tapered portion 108 is connected to the center position of the support portion 109 .

[0093] like Figure 4 As shown, the filter component in the rear end tube 103 includes two partitions 110;

[0094] The two partition nets 110 are both connected to the inner wall of the rear end tube 103, and a placement space is formed between the two partition nets 110. The interior of the placement space is suitable for filling the adsorption material.

[0095] The working principle of this embodiment is as follows:

[0096] First, the wastewater is pumped into the interior of the filter assembly 1 through a pump, and all the wastewater first passes through the front end pipe 101 and undergoes preliminary filtration inside the front end pipe 101;

[0097] A removable inner sleeve 104 is provided inside the front end pipe 101, and a filter tank is provided inside the inner sleeve 104, and a filter screen 105 is provided inside the filter tank. Since the wastewater flowing into the front end pipe 101 is too much and has not been filtered, it contains a large amount of impurities. In order to reduce the workload of the filter screen 2 106 and prevent it from being blocked, a long filter tank and a filter screen 105 are provided inside the inner sleeve 104. When the wastewater passes through, it will be filtered once by the filter screen 105 and then filtered for the second time by the filter screen 2 106;

[0098] The inner sleeve 104 can be used to filter the wastewater so as to avoid direct scouring of the front end pipe 101 to cause wear and corrosion. Meanwhile, the detachable inner sleeve 104 can be directly disassembled for cleaning or replacement and maintenance after long-term use.

[0099] After the preliminary treatment by the front end pipe 101, the larger impurities are filtered out, and the wastewater is diverted to the inside of the two middle pipes 102. The contact area between the diverted wastewater and the corresponding filter components is increased, and the filtering effect is better.

[0100] A conical filter screen 107 is arranged inside the middle pipe 102. The mesh of the conical filter screen 107 is smaller than that of the filter screen 105 and the filter screen 2 106, so that relatively small impurities can be further filtered out. The arrangement of the conical filter screen 107 increases the contact area with the wastewater in the limited space in the middle pipe 102, thereby enhancing the filtering effect.

[0101] Since a large amount of wastewater flows into the middle pipe 102, the impact on the conical portion 108 of the conical filter 107 is relatively large, which may cause the conical portion 108 to deform or shake, thereby affecting the filtering effect. Therefore, a support portion 109 is also provided on the conical filter 107. The wastewater first contacts the support portion 109. The support portion 109 has the same cross-sectional shape as the internal portion of the middle pipe 102 and can withstand more impact force. Through the buffering of the support portion 109 and the support of the conical portion 108, the overall deformation and shaking of the conical filter 107 are avoided, thereby enhancing the stability of the filtering.

[0102] The wastewater filtered by the middle pipe 102 will flow to the rear pipe 103. Two partitions 110 are arranged in the rear pipe 103. A placement space is formed between the two partitions 110. Adsorption materials are placed inside the placement space to further filter harmful substances in the wastewater.

[0103] The adsorbent material may be activated carbon.

[0104] Embodiment 2

[0105] like Figure 1 , Figure 6-7As shown, this embodiment further includes the following structures on the basis of the first embodiment: the vacuum normal temperature wastewater evaporation device also includes a precipitation device and a collection box 3;

[0106] The collection box 3 is located at the bottom of the treatment cylinder 2;

[0107] The sedimentation device is suitable for separating impurities generated by the liquid in the treatment cylinder 2, and the collection box 3 is suitable for storing the impurities separated by the sedimentation device.

[0108] like Figure 8-9 As shown, the precipitation device includes a precipitation component 6, and the precipitation component 6 is located inside the treatment cylinder 2;

[0109] The sedimentation assembly 1 6 includes a coarse filter disc 601 and a coarse baffle disc 607, and the outer peripheral surface of the coarse filter disc 601 is fixedly connected to the inner wall of the treatment cylinder 2;

[0110] The coarse filter disc 601 and the coarse baffle disc 607 are each provided with at least one coarse hole 602 penetrating through the coarse filter disc 601. The coarse baffle disc 607 is rotatably mounted on the bottom of the coarse filter disc 601. The coarse baffle disc 607 is adapted to be driven by a driving assembly to rotate to close the coarse hole 602 on the coarse filter disc 601. After the coarse filter disc 601 is closed, a coarse sedimentation chamber is formed between the coarse filter disc 601 and the bottom wall of the treatment barrel 2. A shunt pipe 1 608 is provided outside the treatment barrel 2. The shunt pipe 1 608 is adapted to connect the internal space of the collection box 3 and the coarse sedimentation chamber.

[0111] The driving assembly includes a driving bevel gear 605, a driven bevel gear 606 and a driving device 604;

[0112] The driving device 1 604 is located outside the treatment cylinder 2, and the driving device 1 604 is suitable for being connected to the driving bevel gear 1 605 through a coupling;

[0113] The driven bevel gear 1 606 is connected to the bottom of the coarse baffle plate 607, and the driven bevel gear 1 606 is meshed with the active bevel gear 1 605. The driving device 1 604 is suitable for driving the active bevel gear 1 605 to rotate so as to drive the driven bevel gear 1 606 and the coarse baffle plate 607 to rotate;

[0114] A coarse slope 603 is provided between the upper surface of the coarse filter disc 601 and the coarse hole 602 .

[0115] like Figure 7 , Figure 10-11 As shown, the precipitation device further includes a precipitation component 2 7, and the precipitation component 2 7 includes a driving gear 1 705, a driven gear 1 706 and a stirring component, and a feeding component is arranged on the driven gear 1 706;

[0116] The driving gear 1 705 is located outside the treatment cylinder 2, and the driven gear 1 706 is rotatably installed on the top of the treatment cylinder 2. The driving gear 1 705 and the driven gear 1 706 are meshed and connected, and the stirring assembly is connected to the driven gear 1 706. The stirring assembly is located inside the treatment cylinder 2, and the driving gear 1 705 is suitable for being driven by the driving assembly to rotate so as to drive the driven gear 1 706 and the stirring assembly to rotate;

[0117] The driving assembly includes a second driving device 701, a second driving bevel gear 702, a rotating rod 704 and a second driven bevel gear 703. The second driving device 701 is installed on the collection box 3, and the rotating rod 704 is rotatably installed on the collection box 3. The second driving device 701 is connected to the second driving bevel gear 702 through a coupling, and the second driven bevel gear 703 is fixedly sleeved on the outer peripheral surface of the rotating rod 704. The second driving bevel gear 702 is meshed and connected with the second driven bevel gear 703, and the top of the rotating rod 704 is connected to the bottom of the first driving gear 705;

[0118] The stirring assembly includes a feed pipe 708, a second driving gear 710, and at least one connecting ring 709. The feed pipe 708 is located inside the processing cylinder 2. A portion of the feed pipe 708 passes through the inside of the processing cylinder 2 and is connected to the bottom of the driven gear 1 706. The second driving gear 710 and the connecting ring 709 are both fixedly sleeved on the outer circumferential surface of the feed pipe 708. The bottom of the connecting ring 709 is rotatably mounted with a second driven gear 711. The inside of the processing cylinder 2 is connected to an outer toothed disk 712. The second driven gear 711 and the second driving gear 710 are both located inside the outer toothed disk 712. The second driven gear 711 is meshed and connected with the second driving gear 710 and the outer toothed disk 712 respectively. The bottom of the second driven gear 711 is connected to a stirring rod 713.

[0119] The feed assembly includes a feed port 707, which is connected to the top of the driven gear 1 706. The feed pipe 708 is hollow, and the feed port 707 is connected to the inner cavity of the feed pipe 708. The feed pipe 708 is provided with a plurality of discharge holes 714 that penetrate the feed pipe 708.

[0120] The processing tube 2 is connected with an air outlet pipe 10 , which is suitable for absorbing the gas generated in the processing tube 2 , and a gas purifier 11 is connected to the air outlet end of the air outlet pipe 10 .

[0121] like Fig.12 As shown, a sedimentation assembly 3 8 is disposed inside the treatment cylinder 2, and the sedimentation assembly 3 8 includes a one-way bearing 801, a connecting rod 802, a fine filter disc 803 and a fine baffle disc 804;

[0122] The one-way bearing 801 is suitable for connecting the connecting rod 802 and the feed pipe 708. The fine filter disc 803 is fixedly connected to the inner wall of the treatment cylinder 2. The connecting rod 802 passes through the interior of the fine filter disc 803. The bottom of the connecting rod 802 is connected to the top of the fine baffle disc 804. The fine baffle disc 804 is rotatably installed at the bottom of the fine filter disc 803.

[0123] The fine filter disc 803 and the fine baffle disc 804 are each provided with at least one fine hole 805 penetrating through them. The connecting rod 802 is adapted to be driven to rotate by the feed pipe 708 and then drive the fine baffle disc 804 to rotate to close the fine hole 805 on the fine filter disc 803.

[0124] A fine sedimentation chamber is formed between the fine filter disc 803 and the coarse filter disc 601 after being sealed, and a second shunt pipe 807 is connected to the outside of the treatment cylinder 2, and the second shunt pipe 807 is suitable for connecting the internal space of the collection box 3 and the fine sedimentation chamber;

[0125] A fine slope 806 is provided between the fine hole 805 and the upper surface of the fine filter disc 803 .

[0126] The working principle of this embodiment is as follows:

[0127] After the wastewater has been filtered through multiple stages, it enters the treatment cylinder 2 through the rear end pipe 103. The filtered wastewater will be kept still for a short time inside the treatment cylinder 2. During the resting process, the larger particle impurities in the wastewater will flow to the bottom of the treatment cylinder 2 due to their own weight.

[0128] During the flow, some of the larger particles directly pass through the coarse holes 602 on the coarse filter plate 601, and some fall on the coarse filter plate 601 and then slide through the coarse slope 603 to the inside of the coarse holes 602, and finally all are located at the bottom of the treatment cylinder 2;

[0129] In order to prevent the sediment at the bottom of the treatment tube 2 from being taken out together with the wastewater after sedimentation when it is pumped into the vacuum chamber 4, the coarse filter disc 601 needs to be closed;

[0130] The coarse filter disc 601 is closed by rotating the coarse blocking disc 607 to block the coarse holes 602 on the coarse filter disc 601. It should be noted that when the coarse filter disc 601 is in the open state, the coarse holes 602 on the coarse blocking disc 607 are connected, so that the sediment can pass normally;

[0131] When the coarse filter plate 601 is rotated, the driving device 604 needs to be started to drive the active bevel gear 605 to rotate, and the active bevel gear 605 is meshed with the driven bevel gear 606 to realize the rotation of the coarse filter plate 607;

[0132] After the coarse filter disc 601 is closed, a coarse sedimentation chamber is formed between the coarse filter disc 601 and the bottom of the treatment tube 2, which separates the sediment and the wastewater on the top of the coarse filter disc 601. Then, the electric control valve in the diversion pipe 608 is opened to guide the sediment and part of the wastewater in the coarse sedimentation chamber to the collection box 3 for unified treatment.

[0133] The above-mentioned precipitation by self-weight can only solve the particles with larger self-weight, while the smaller particles are still not further processed. At this time, it is necessary to start the precipitation component 2 7 to drive the stirring rod 713 to start working, and at the same time, add the corresponding reagent into the inside of the treatment cylinder 2 through the feed port 707, and the mixing of the reagent and the wastewater causes the smaller particles in the wastewater to begin to precipitate;

[0134] The drug is fed into the feed pipe 708 through the feed port 707 and then into the center. The feed pipe 708 is placed in the wastewater and has a discharge hole 714 formed thereon. The drug eventually flows out through the discharge hole 714 and mixes with the wastewater.

[0135] To open the sedimentation component 2 7, it is first necessary to start the driving device 2 701, which drives the active bevel gear 2 702 to rotate. The active bevel gear 2 702 realizes the rotation of the rotating rod 704 by meshing with the driven bevel gear 2 703. The rotating rod 704 drives the active gear 1 705 on its top to rotate. The active gear 1 705 meshes with the driven gear 1 706 to realize the rotation of the active gear 2 710 and the feed pipe 708. The feed pipe 708 is connected to the driven gear 2 711 through the connecting ring 709. The driven gear 2 711 is rotatably installed at the bottom of the connecting ring 709. The driven gear 2 711 is meshed with the outer toothed disc 712 and the active gear 2 710 at the same time.

[0136] The feed pipe 708 drives the driven gear 2 711 to revolve around the feed pipe 708 as the center inside the outer toothed disc 712. Due to the meshing of the driven gear 2 711, the outer toothed disc 712 and the driving gear 2 710, the driven gear 2 711 can also rotate while revolving, so that the stirring rod 713 at the bottom of the driven gear 2 711 can revolve around the feed pipe 708 as the center inside the treatment barrel 2 while rotating, thereby achieving a more efficient stirring and mixing effect and accelerating the reaction between the reagent and the smaller particles in the wastewater.

[0137] After the reaction is completed, the smaller particles will flow to the bottom of the treatment cylinder 2. During the flow, some of them will pass through the fine holes 805 on the fine filter disc 803, and some of them will fall on the upper surface of the fine filter disc 803 and slide through the fine slope 806 to pass through the fine holes 805. Finally, the smaller particles will fall on the coarse filter disc 601. It should be noted that the coarse filter disc 601 is still in a closed state at this time to prevent the larger particles that have not been completely collected from being mixed into the water again.

[0138] When the precipitation process produced by the second reaction with the reagent ends, the fine filter disc 803 needs to be closed. The fine filter disc 803 is closed by rotating the fine blocking disc 804 to block the fine holes 805 on the fine filter disc 803. It should be noted that when the fine filter disc 803 is in the open state, the fine holes 805 on it and the fine holes 805 on the fine blocking disc 804 are connected, so that the precipitate can pass normally.

[0139] When closing, it is necessary to rely on the second driving device 701 to drive the feed pipe 708 to reverse. When driving the stirring rod 713 to rotate forward, the one-way bearing 801 provided between the connecting rod 802 and the feed pipe 708 cannot drive the connecting rod 802 to rotate. When the fine filter disc 803 needs to be closed, the feed pipe 708 is reversed, and the one-way bearing 801 and the connecting rod 802 can be driven to rotate at the same time. When the connecting rod 802 rotates, it drives the fine baffle 804 to rotate to close the fine filter disc 803.

[0140] After the fine filter disc 803 is closed, a fine sedimentation chamber is formed between the fine filter disc 803 and the coarse filter disc 601 which is also closed. At this time, the electric control valve in the diversion pipe can be opened to discharge the sediment and part of the wastewater in the fine sedimentation chamber into the collection box 3 for unified treatment;

[0141] It should be noted that harmful gases are generated when the reagent reacts with the wastewater. The harmful gases pass through the gas outlet pipe 10 and enter the gas purifier 11 for filtration and can be directly discharged. The gas purifier 11 can be a common device on the market.

[0142] This part mainly further processes the filtered wastewater through two precipitations to ensure the quality of the wastewater that is subsequently heated into steam and finally condensed into water in the vacuum chamber 4.

[0143] Embodiment 3

[0144] like Fig.13 As shown, this embodiment further includes the following structures based on the first embodiment: the interior of the vacuum chamber 4 includes a heating component and a mixing component;

[0145] The heating assembly includes a heating device 401 and a temperature sensor 404. The heating device 401 is inside the vacuum chamber 4, and the temperature sensor 404 is installed on the outer peripheral surface of the vacuum chamber 4.

[0146] The mixing assembly includes a stirring disk 403, which is rotatably mounted inside the vacuum chamber 4;

[0147] A driving device 3 402 is installed on the top of the vacuum chamber 4 , and the driving device 3 402 is connected to the stirring disk 403 to drive the stirring disk 403 to rotate inside the vacuum chamber 4 .

[0148] like Fig.14As shown, the condensation assembly 5 includes a cold cycle pipe sleeve 501 and a condensation pipe 502;

[0149] The condenser 502 is connected to the vacuum chamber 4, and the cold circulation pipe sleeve 501 is sleeved on the outside of the condenser 502;

[0150] The cold circulation pipe sleeve 501 is connected to an external circulation pump and a heat exchanger, and a cooling liquid is arranged inside the cold circulation pipe sleeve 501;

[0151] A vacuum pump 504 is installed at one end of the condenser tube 502 away from the vacuum chamber 4, and the vacuum pump 504 is suitable for extracting the steam inside the vacuum chamber 4 along the inside of the condenser tube 502;

[0152] A collecting plate 503 is provided inside the condenser 502 , and the collecting plate 503 is in a spiral shape inclined toward the vacuum pump 504 .

[0153] The working principle of this embodiment is as follows:

[0154] The completely treated wastewater is pumped into the vacuum chamber 4 by opening the electric control valve in the water inlet pipe 9. The boiling point of the gas in the vacuum chamber 4 is lowered by the vacuum state. The wastewater is gasified by the heating device 401 and the temperature inside the vacuum chamber 4 is monitored in real time by the temperature sensor 404. This part belongs to the prior art and will not be described in detail here.

[0155] While the heating device 401 is working, the driving device 3 402 is synchronously started to control the stirring disk 403 located inside the vacuum chamber 4 to start rotating. The stirring disk 403 continuously stirs the wastewater, so that the wastewater is heated more evenly during the heating process, thereby accelerating the gasification rate of the wastewater.

[0156] The steam generated after the wastewater is gasified is pumped into the condenser 502 through the vacuum pump 504. A cold circulation pipe sleeve 501 is arranged outside the condenser 502. A cooling medium is arranged in the cold circulation pipe sleeve 501. The cooling medium continuously flows inside the cold circulation pipe sleeve 501 through an external circulation pump and a heat exchanger. This part belongs to the prior art and will not be described in detail here.

[0157] After the steam enters the condenser tube 502, the heat is absorbed by the cooling medium, and the steam is liquefied into water. An inclined spiral collecting plate 503 is provided inside the condenser tube 502. When the steam passes through the collecting plate 503, the steam takes a spiral direction, which increases the moving distance, the contact time and contact area with the cooling medium, and makes the liquefaction more efficient.

[0158] Furthermore, since the spiral collecting plate 503 is inclined toward the outlet of the condensing tube 502, the liquefied water will also flow toward the outlet along the spiral direction, and the backflow phenomenon will not occur;

[0159] The resulting water can be directly collected and used.

[0160] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly vacuum normal temperature wastewater evaporation device for chemical industry, characterized in that: include: Treatment barrel (2); A filter assembly (1), the filter assembly (1) comprising a front end tube (101), a middle tube (102) and a rear end tube (103), the front end tube (101), the middle tube (102) and the rear end tube (103) being sealed and butted in sequence, and corresponding filter components are respectively arranged inside the front end tube (101), the middle tube (102) and the rear end tube (103); The rear end tube (103) is connected to the treatment cylinder (2) to guide the liquid into the interior of the treatment cylinder (2); A vacuum chamber (4), wherein the vacuum chamber (4) is connected to the treatment cylinder (2) via a water inlet pipe (9), and the vacuum chamber (4) is suitable for allowing the liquid in the treatment cylinder (2) to pass through and evaporate under vacuum; A condensation component (5), the condensation component (5) is connected to the vacuum chamber (4), and the condensation component (5) is suitable for converting the steam in the vacuum chamber (4) into liquid.

2. The energy-saving and environment-friendly vacuum normal temperature wastewater evaporation device for chemical industry according to claim 1 is characterized in that: The filtering component in the front end tube (101) comprises an inner sleeve (104), and the inner sleeve (104) is detachably mounted inside the front end tube (101); At least one filter groove is provided in the inner sleeve (104), and a filter screen 1 (105) is provided in the filter groove; A second filter screen (106) is connected to one end of the inner sleeve (104) close to the middle tube (102).

3. The energy-saving and environment-friendly vacuum normal temperature wastewater evaporation device for chemical industry according to claim 1 is characterized in that: The filtering component in the intermediate tube (102) includes a conical filtering screen (107); The conical filter screen (107) is divided into a conical portion (108) and a supporting portion (109), and filtering holes are provided on both the conical portion (108) and the supporting portion (109); The large diameter end of the tapered portion (108) and the support portion (109) are both connected to the inner wall of the intermediate tube (102), and the small diameter end of the tapered portion (108) is connected to the center position of the support portion (109).

4. The energy-saving and environment-friendly vacuum normal temperature wastewater evaporation device for chemical industry according to claim 1 is characterized in that: The filtering component in the rear end tube (103) includes two partition nets (110); The two partition nets (110) are both connected to the inner wall of the rear end tube (103), and a placement space is formed between the two partition nets (110), and the interior of the placement space is suitable for filling with adsorption material.

5. The energy-saving and environment-friendly vacuum normal temperature wastewater evaporation device for chemical industry according to claim 1 is characterized in that: It also includes a sedimentation device and a collection box (3); The collection box (3) is located at the bottom of the treatment cylinder (2); The sedimentation device is suitable for separating impurities generated by the liquid in the treatment cylinder (2), and the collection box (3) is suitable for storing the impurities separated by the sedimentation device.

6. The energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry according to claim 5 is characterized in that: The sedimentation device comprises a sedimentation component one (6), wherein the sedimentation component one (6) is located inside the treatment cylinder (2); The sedimentation component 1 (6) comprises a coarse filter disc (601) and a coarse baffle disc (607), and the outer peripheral surface of the coarse filter disc (601) is fixedly connected to the inner wall of the treatment cylinder (2); The coarse filter disc (601) and the coarse baffle disc (607) are each provided with at least one coarse hole (602) penetrating the coarse filter disc (601); the coarse baffle disc (607) is rotatably mounted on the bottom of the coarse filter disc (601); the coarse baffle disc (607) is adapted to be driven by a driving assembly to rotate so as to close the coarse hole (602) on the coarse filter disc (601); after the coarse filter disc (601) is closed, a coarse sedimentation chamber is formed between the coarse filter disc (601) and the bottom wall of the treatment barrel (2); a shunt pipe 1 (608) is provided on the outside of the treatment barrel (2); the shunt pipe 1 (608) is adapted to connect the internal space of the collection box (3) and the coarse sedimentation chamber; The driving assembly comprises a driving bevel gear 1 (605), a driven bevel gear 1 (606) and a driving device 1 (604); The driving device 1 (604) is located outside the treatment cylinder (2), and the driving device 1 (604) is suitable for being connected to the active bevel gear 1 (605) through a coupling; The driven bevel gear 1 (606) is connected to the bottom of the coarse baffle plate (607), the driven bevel gear 1 (606) is meshedly connected with the active bevel gear 1 (605), and the driving device 1 (604) is suitable for driving the active bevel gear 1 (605) to rotate so as to drive the driven bevel gear 1 (606) and the coarse baffle plate (607) to rotate; A coarse slope (603) is provided between the upper surface of the coarse filter disc (601) and the coarse hole (602).

7. The energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry according to claim 6 is characterized in that: The precipitation device further comprises a precipitation component 2 (7), wherein the precipitation component 2 (7) comprises a driving gear 1 (705), a driven gear 1 (706) and a stirring component, wherein a feeding component is arranged on the driven gear 1 (706); The driving gear 1 (705) is located outside the processing cylinder (2), the driven gear 1 (706) is rotatably mounted on the top of the processing cylinder (2), the driving gear 1 (705) and the driven gear 1 (706) are meshed and connected, the stirring component is connected to the driven gear 1 (706), the stirring component is located inside the processing cylinder (2), and the driving gear 1 (705) is suitable for being driven by the driving component to rotate so as to drive the driven gear 1 (706) and the stirring component to rotate; The driving assembly comprises a second driving device (701), a second driving bevel gear (702), a rotating rod (704) and a second driven bevel gear (703); the second driving device (701) is mounted on the collection box (3); the rotating rod (704) is rotatably mounted on the collection box (3); the second driving device (701) is connected to the second driving bevel gear (702) via a coupling; the second driven bevel gear (703) is fixedly sleeved on the outer peripheral surface of the rotating rod (704); the second driving bevel gear (702) is meshedly connected with the second driven bevel gear (703); and the top of the rotating rod (704) is connected to the bottom of the first driving gear (705); The stirring assembly comprises a feed pipe (708), a second driving gear (710), and at least one connecting ring (709); the feed pipe (708) is located inside the processing cylinder (2); a portion of the feed pipe (708) passes through the inside of the processing cylinder (2) and is connected to the bottom of the first driven gear (706); the second driving gear (710) and the connecting ring (709) are both fixedly sleeved on the outer peripheral surface of the feed pipe (708); a second driven gear (711) is rotatably mounted on the bottom of the connecting ring (709); an outer toothed disc (712) is connected to the inside of the processing cylinder (2); the second driven gear (711) and the second driving gear (710) are both located inside the outer toothed disc (712); the second driven gear (711) is meshedly connected to the second driving gear (710) and the outer toothed disc (712) respectively; and a stirring rod (713) is connected to the bottom of the second driven gear (711); The feed assembly comprises a feed port (707), the feed port (707) is connected to the top of the driven gear 1 (706), the feed pipe (708) is hollow, the feed port (707) is in communication with the inner cavity of the feed pipe (708), and the feed pipe (708) is provided with a plurality of discharge holes (714) penetrating the feed pipe (708); The treatment cylinder (2) is connected to an air outlet pipe (10), the air outlet pipe (10) is suitable for absorbing the gas generated in the treatment cylinder (2), and the air outlet end of the air outlet pipe (10) is connected to a gas purifier (11).

8. The energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry according to claim 7 is characterized in that: A sedimentation assembly three (8) is arranged inside the treatment cylinder (2), and the sedimentation assembly three (8) comprises a one-way bearing (801), a connecting rod (802), a fine filter disc (803) and a fine baffle disc (804); The one-way bearing (801) is suitable for connecting the connecting rod (802) and the feed pipe (708), the fine filter disc (803) is fixedly connected to the inner wall of the processing cylinder (2), the connecting rod (802) passes through the interior of the fine filter disc (803), the bottom of the connecting rod (802) is connected to the top of the fine blocking disc (804), and the fine blocking disc (804) is rotatably mounted on the bottom of the fine filter disc (803); The fine filter disc (803) and the fine blocking disc (804) are each provided with at least one fine hole (805) penetrating through the fine filter disc, and the connecting rod (802) is adapted to be driven to rotate by the feed pipe (708) and drive the fine blocking disc (804) to rotate so as to close the fine hole (805) on the fine filter disc (803); A fine sedimentation chamber is formed between the sealed fine filter disc (803) and the coarse filter disc (601), and the outside of the treatment cylinder (2) is connected with a second shunt pipe (807), and the second shunt pipe (807) is suitable for connecting the internal space of the collection box (3) and the fine sedimentation chamber; A fine slope (806) is provided between the fine hole (805) and the upper surface of the fine filter disc (803).

9. The energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry according to claim 1, characterized in that: The interior of the vacuum chamber (4) includes a heating component and a mixing component; The heating assembly comprises a heating device (401) and a temperature sensor (404), wherein the heating device (401) is inside the vacuum chamber (4), and the temperature sensor (404) is installed on the outer peripheral surface of the vacuum chamber (4); The mixing assembly comprises a stirring disk (403), and the stirring disk (403) is rotatably mounted inside the vacuum chamber (4); A driving device three (402) is installed on the top of the vacuum chamber (4), and the driving device three (402) is connected to the stirring disk (403) to drive the stirring disk (403) to rotate inside the vacuum chamber (4).

10. The energy-saving and environment-friendly vacuum normal-temperature wastewater evaporation device for chemical industry according to claim 1, characterized in that: The condensation component (5) comprises a cold circulation pipe sleeve (501) and a condensation pipe (502); The condenser (502) is connected to the vacuum chamber (4), and the cold circulation pipe sleeve (501) is sleeved on the outside of the condenser (502); The cold circulation pipe sleeve (501) is connected to an external circulation pump and a heat exchanger, and a cooling liquid is arranged inside the cold circulation pipe sleeve (501); A vacuum pump (504) is installed at one end of the condenser (502) away from the vacuum chamber (4), and the vacuum pump (504) is suitable for extracting the steam inside the vacuum chamber (4) along the inside of the condenser (502); A collecting plate (503) is provided inside the condenser tube (502), and the collecting plate (503) is in a spiral shape inclined toward the vacuum pump (504).

Images