Stainless steel water purification equipment

Abstract

The invention relates to the field of water purification equipment, and particularly discloses stainless steel water purification equipment which comprises a coagulant adding system, a coagulant aid adding system, a static mixer, a reaction precipitator, a filter and a water storage tank. The first cavity is sleeved with the second cavity, the bottoms of the two cavities are communicated, a first spiral plate and a second spiral plate are arranged on the side portions of the two cavities respectively, and when mixed liquid or rainwater flows from top to bottom in the first cavity, forward vortexes are generated, and then when the mixed liquid or rainwater flows from bottom to top in the second cavity, reverse vortexes are generated. When the flowing direction is turned, the two vortexes can form strong impact force, so that the flocculation efficiency is accelerated; a desilting and stirring auxiliary device composed of a rotating arm, a mud scraping plate and a stirring rod is installed in the reaction precipitator and can assist in desilting and stirring, and compared with a traditional structure, the desilting and stirring auxiliary device has the advantages of being large in load resistance, not prone to blockage, high in reaction efficiency and the like.

Description

Technical Field

[0001] The invention belongs to the field of water purification equipment, and in particular relates to stainless steel water purification equipment. Background Art

[0002] Mountainous areas and rural areas are remote and difficult to access with municipal pipelines. Most of the drinking water is taken directly from rivers, mountain springs, reservoirs or precipitation. The water quality cannot be guaranteed for a long time, and normal water supply cannot be guaranteed during the dry season. Therefore, there is an urgent need for a water purification and storage equipment suitable for rural areas to solve people's drinking water problems.

[0003] The stainless steel combined water purification equipment is a commonly used rural water purification and storage equipment. Its principle is to mix the coagulant and coagulant aid with the water source through a mixer and add them to the reaction precipitator, and then filter them through a filter and finally enter the water tank for storage, so as to purify and store the natural water source, and the split equipment can also be convenient for transportation and assembly. However, the reaction precipitator in the existing water purification equipment usually uses a straight grid structure to block and mix the suspension and the water source. The blocking structure is difficult to arrange in a circular tank and has poor load resistance, is easy to clog and has low flocculation reaction efficiency. Especially in heavy rain weather, it is difficult to quickly mix the coagulant to form alum flowers.

[0004] A stainless steel integrated water purifier is disclosed in the patent document with application number "2018217884272", including a dosing device, a reaction precipitator and a filter. The reaction precipitator includes a water inlet and a water outlet; the reaction precipitator is connected to the dosing device and the filter through a pipeline. The reaction sedimentation tank includes a reaction float, and the reaction float floats are concentrated and floated in the upper half of the reaction sedimentation tank to form a float group. A grille baffle is provided in the middle of the reaction sedimentation tank, and the bottom of the reaction sedimentation tank is a sedimentation area. The reaction sedimentation tank in this comparative document still uses a grille baffle to mix and react the coagulant with the water source, and still has problems such as easy clogging and poor load resistance. Although the float has a certain stirring effect, it can only stir and react the water and the agent in the upper layer, but cannot react the agent below, and still has the problem of low flocculation efficiency.

[0005] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0006] The purpose of the present invention is to provide a stainless steel water purification device, so as to overcome the defects of low flocculation efficiency during reaction precipitation, easy clogging of the blocking structure and poor load resistance in the existing stainless steel water purification device.

[0007] To achieve the above-mentioned purpose, the present invention provides a stainless steel water purification equipment, comprising: a coagulant dosing system, a coagulant aid dosing system, a static mixer, a reaction precipitator, a filter and a water storage tank, wherein the coagulant dosing system and the coagulant aid dosing system are connected to the static mixer at the same time, the static mixer is connected to the reaction precipitator through an inlet pipe, the reaction precipitator is connected to a plurality of filters through an outlet pipe, each of the filters is connected to the water storage tank, a first cavity and a second cavity are arranged inside the reaction precipitator, the second cavity surrounds the outer periphery of the first cavity, a water collecting port communicating with the outside is opened on the top of the first gun body, the bottom of the first cavity is communicated with the bottom of the second gun body, a first spiral plate is arranged on the inner wall of the first cavity, a second spiral plate is arranged on the inner wall of the second cavity, and the first spiral plate and the second spiral plate have the same rotation direction; the first cavity gradually narrows from top to bottom, and the second cavity gradually narrows from bottom to top, the inlet pipe is communicated with the top of the first cavity and is located above the first spiral plate, and the outlet pipe is communicated with the top of the second cavity.

[0008] Preferably, in the above technical solution, a mud storage chamber is provided below the second chamber, a mud discharge port connected to the mud storage chamber is provided at the bottom of the second chamber, the bottom of the second chamber is inclined toward the mud discharge port, a mud discharge groove is provided at the bottom of the mud storage chamber, the bottom of the mud storage chamber is inclined toward the mud discharge groove, and a mud discharge screw is provided in the mud discharge groove.

[0009] Preferably, in the above technical scheme, the reaction precipitator includes an outer tank body and an inner tank body, the inner tank body is arranged in the outer tank body, the first cavity is opened in the inner tank body, the outer wall of the inner tank body and the inner wall of the outer tank body constitute the second cavity, the mud storage cavity is located at the bottom of the outer tank body, the bottom of the inner tank body shrinks toward its center, the water collection port is opened at the top of the inner tank body, and the bottom of the inner tank body is opened with a connecting port connected to the second cavity; the outer wall of the inner tank body is provided with a third spiral plate, the third spiral plate and the second spiral plate have the same rotation direction and its blades are interspersed with the blades of the second spiral plate.

[0010] Preferably, in the above technical solution, a screw sleeve is provided on the side of the outer tank body, a mud outlet is opened below the screw sleeve, one end of the mud discharge screw extends above the mud outlet and is rotatably connected to one end of the screw sleeve, and a screw driving device is provided at one end of the screw sleeve.

[0011] Preferably, in the above technical solution, an outer tank opening is provided on the top of the outer tank body, the top of the inner tank body extends upward from the outer tank opening, a blocking cover is provided between the outer tank opening and the outer wall of the inner tank body, the top of the blocking cover is lower than the top of the outer tank body, and a water flow groove is provided on the outer periphery of the water collecting port, and the water flow groove is located above the blocking cover.

[0012] Preferably, in the above technical solution, a plurality of water storage boxes are provided on the outer periphery of the outer tank body, the top of the water storage box is flush with the top of the outer tank body, a water outlet is provided on the side of the outer tank body, the water outlet extends upward from the top of the outer tank body and is connected with the side of the water storage box, and the water outlet pipe is connected to the bottom end of the water storage box.

[0013] Preferably, the above technical solution also includes a rotating arm and a scraper plate, the middle part of the rotating arm is rotatably mounted on the bottom of the second cavity and its rotation axis coincides with the axis of the mud discharge port, the scraper plate is arranged below the rotating arm and spaced along the rotating arm, a rubber plate is provided at the bottom of the scraper plate, the bottom of the rubber plate abuts against the bottom of the second cavity and deforms, an angle is formed between the rubber plate and the rotating arm, so that when the rotating arm rotates, the rubber plate can push and scrape the sludge at the bottom of the second cavity toward the mud discharge port.

[0014] Preferably, in the above technical solution, a plurality of stirring rods are arranged at intervals on the rotating arm, the stirring rods are parallel to the rotation axis of the rotating arm, and a water cut angle is provided on the side of the stirring rod, and the direction of the water cut angle is consistent with the rotation direction of the rotating arm.

[0015] Preferably, the above technical solution also includes a stirring drive unit, a rotating shaft and a shaft seat, the shaft seat is installed at the mud discharge port, a mounting hole is provided on the shaft seat, the stirring drive unit is installed at the water collection port, and the driving end of the stirring drive unit is connected to one end of the rotating shaft and can drive the rotating shaft to rotate, the other end of the rotating shaft is rotatably inserted into the mounting hole, and the middle part of the rotating arm is fixedly connected to the rotating shaft.

[0016] Preferably, in the above technical solution, a bridge frame is provided at the water collection port, the bridge frame is a double-layer structure, the stirring drive unit of the bridge frame is installed on the bottom layer of the bridge frame, the top layer of the bridge frame is provided with a maintenance port corresponding to the position of the stirring drive unit, and a ladder is provided on the outside of the reaction precipitator, and the top of the ladder is connected to one end of the bridge frame.

[0017] Compared with the existing technology, the present invention has the following beneficial effects:

[0018] 1. The stainless steel water purification equipment of the present invention is provided with a first cavity and a second cavity which are nested in a reaction precipitator. The bottoms of the two cavities are connected, and a first spiral plate and a second spiral plate are respectively provided on the sides of the two cavities. When the mixed liquid or rainwater flows from top to bottom in the first cavity, a positive vortex is generated, and when it flows from bottom to top in the second cavity, a reverse vortex is generated. When the flow direction is reversed, the two vortices can form a strong impact force, thereby accelerating the flocculation efficiency. Compared with the traditional structure, it has the advantages of large load resistance, not easy to be blocked, and high reaction efficiency.

[0019] 2. The first cavity in the present invention gradually narrows from top to bottom, and the second cavity gradually narrows from bottom to top, so that the mixed liquid or rainwater forms an acceleration effect when flowing, thereby further increasing the speed of the two vortexes, increasing the reaction efficiency and the collision intensity of the positive and negative vortexes.

[0020] 3. The rotating arm of the present invention is provided with a stirring rod and a scraper. When the rotating arm rotates, it can not only stir the mixed liquid inside the reaction precipitator to assist the flocculation reaction, but also push the sludge to the sludge discharge port through the scraper, thereby having a cleaning effect.

[0021] 4. The setting of the double-layer bridge frame not only makes it convenient for personnel to maintain the equipment, but also can shield the stirring drive part, protect its motor, bearings and other parts, and prevent rain intrusion.

[0022] 5. The third spiral plate can intersect with the second spiral plate, thereby increasing the blocking and drainage effects and further improving the flocculation reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of a reaction precipitator and a filter of a stainless steel water purification device of the present invention.

[0024] Figure 2 This is a partial cross-sectional view of the reaction precipitator.

[0025] Figure 3 It is a structural diagram of the rotating arm, scraper and stirring rod.

[0026] Description of main reference numerals:

[0027] 100-reaction precipitator, 110-water inlet pipe, 120-water outlet pipe, 130-first cavity, 140-second cavity, 150-water collection port, 160-first spiral plate, 170-second spiral plate;

[0028] 200 - filter;

[0029] 300 - mud storage chamber, 310 - mud discharge port, 320 - mud discharge trough, 330 - mud discharge screw, 340 - screw sleeve, 341 - mud outlet, 350 - screw driving device;

[0030] 400-external tank body, 410-external tank opening, 420-blocking cover, 430-water storage box, 440-water outlet;

[0031] 500-inner tank body, 510-connecting port, 520-third spiral plate, 530-water trough;

[0032] 600-rotating arm, 610-scraper plate, 620-rubber plate, 630-stirring rod, 631-water separation angle, 640-stirring driving part, 650-rotating shaft, 660-shaft seat, 661-mounting hole, 670-transverse pull rod, 680-transverse pull rope, 690-longitudinal pull rope;

[0033] 700-bridge frame, 710-maintenance opening, 720-cover plate, 730-ladder, 740-guardrail, 750-bridge deck. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0036] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0038] like Figures 1 to 3 As shown, the stainless steel water purification equipment in this embodiment includes: a reaction precipitator 100, an inlet pipe 110, an outlet pipe 120, a first cavity 130, a second cavity 140, a water collection port 150, a first spiral plate 160, a second spiral plate 170, a filter 200, a mud storage chamber 300, a mud discharge port 310, a mud discharge trough 320, a mud discharge screw 330, a screw sleeve 340, a mud outlet 341, a screw drive device 350, an outer tank body 400, an outer tank port 410, a blocking cover 420, and a water storage box. 430, water outlet 440, inner tank body 500, connecting port 510, third spiral plate 520, water channel 530, rotating arm 600, scraper plate 610, rubber plate 620, stirring rod 630, water dividing angle 631, stirring drive unit 640, rotating shaft 650, shaft seat 660, mounting hole 661, transverse pull rod 670, transverse pull rope 680, longitudinal pull rope 690, bridge frame 700, maintenance port 710, cover plate 720, ladder 730, guardrail 740, bridge plate 750.

[0039] The coagulant dosing system, the coagulant aid dosing system and the water source access pipeline are connected to the static mixer at the same time. The water outlet end of the static mixer is connected to the reaction precipitator 100 through the water inlet pipe 110, so that the coagulant, coagulant aid and water source are mixed and sent into the reaction precipitator 100. The reaction precipitator 100 is connected to several filters 200 through the water outlet pipe 120, and each filter 200 is connected to the water storage tank.

[0040] In more detail, the reaction precipitator 100 includes an outer tank body 400 and an inner tank body 500, the inner tank body 500 is installed in the outer tank body 400 through a connecting piece, the inner side wall of the inner tank body 500 constitutes a first cavity 130, the outer wall of the inner tank body 500 and the inner wall of the outer tank body 400 constitute a second cavity 140, the length of the second cavity 140 is greater than the length of the first cavity 130, the mud storage chamber 300 is opened at the bottom of the outer tank body 400, and the bottom of the inner tank body 500 shrinks toward its center, so that the first cavity 130 gradually narrows from top to bottom, and the second cavity 140 gradually narrows from bottom to top; the water collection port 150 is opened at the top of the inner tank body 500, and the bottom of the inner tank body 500 is opened with a connecting port 510 connected to the second cavity 140; the inner wall of the first cavity 130 is welded with a first spiral plate 160, and the inner wall of the outer tank body 400 A second spiral plate 170 is welded, and a third spiral plate 520 is welded to the outer wall of the inner tank body 500. The first spiral plate 160, the second spiral plate 170 and the third spiral plate 520 have the same rotation direction, and the blades of the third spiral plate 520 and the blades of the second spiral plate 170 are interlaced with each other; the water inlet pipe 110 is connected to the top of the first cavity 130 and the end of the water inlet pipe 110 is located above the first spiral plate 160; a plurality of water storage boxes 430 are welded on the periphery of the outer tank body 400, and the number of water storage boxes 430 is consistent with the number of filters 200. The top of the water storage box 430 is flush with the top of the outer tank body 400, and a water outlet 440 is provided on the side of the outer tank body 400. The water outlet 440 extends upward from the top of the outer tank body 400 and is connected to the side of the water storage box 430, and the water outlet pipe 120 is connected to the bottom end of the water storage box 430.

[0041] In addition, an outer tank mouth 410 is provided at the top of the outer tank body 400, and the top of the inner tank body 500 extends upward from the outer tank mouth 410, that is, the top of the inner tank body 500 is higher than the outer tank mouth 410, and a blocking cover 420 is provided between the outer tank mouth 410 and the outer wall of the inner tank body 500, and the top of the blocking cover 420 is lower than the top of the outer tank body 400 to form a concave annular groove, and a plurality of water grooves 530 are provided on the periphery of the water collection port 150, and the bottom end of the water groove 530 is located above the blocking cover 420. When the water in the inner tank body 500 is full, the water will flow into the annular groove position through the water groove 530 and then flow into the water storage box 430. The water groove 530 can block some larger impurities, and the water outlet pipe 120 is at a certain distance from the bottom of the water storage box 430, so that the water storage box 430 also has a certain sedimentation effect.

[0042] In addition, the mud storage chamber 300 is opened at the bottom of the outer tank body 400 and is located below the second cavity 140. The bottom of the second cavity 140 is provided with a mud discharge port 310 connected to the mud storage chamber 300. The bottom of the second cavity 140 is recessed downward and inclined toward the mud discharge port 310. A mud discharge groove 320 is opened at the bottom of the mud storage chamber 300. The bottom of the mud storage chamber 300 is recessed downward and inclined toward the mud discharge groove 320. A mud discharge screw 330 is arranged in the mud discharge groove 320. A screw sleeve 340 is installed on the side of the outer tank body 400. A mud outlet 341 is opened below the screw sleeve 340. An openable and closable cover door is installed at the mud outlet 341. One end of the mud discharge screw 330 extends to the top of the mud outlet 341 and is rotatably connected to one end of the screw sleeve 340. A screw driving device 350 is installed at one end of the screw sleeve 340 for driving the mud discharge screw 330 to rotate.

[0043] In addition, a bridge frame 700 is installed at the water collection port 150. The bridge frame 700 is composed of a bridge plate 750 and a guardrail 740. The bridge plate 750 is a cross-shaped structure. There are two bridge plates 750 and they are vertically arranged. The bridge frame 700 is a double-layer structure. The guardrail 740 is connected to the periphery of the bridge plate 750. The stirring drive unit 640 is installed on the bottom layer of the bridge frame 700. The top layer of the bridge frame 700 is provided with a maintenance port 710 corresponding to the position of the stirring drive unit 640. The maintenance port 710 A cover plate 720 that can be opened and closed is provided at the reaction precipitator 100, a ladder 730 is provided on the outside of the reaction precipitator 100, the top of the ladder 730 is connected to one end of the bridge frame 700, one end of the rotating shaft 650 is fixedly connected to the driving end of the stirring driving part 640, and a sealed protection barrel is provided at the connection to prevent the connecting parts from being rusted by water immersion, the other end of the rotating shaft 650 extends downward into the water collection port 150, and the shaft seat 660 is installed at the mud discharge port 310, and a mounting hole 661 is provided on the shaft seat 660 The other end of the rotating shaft 650 is rotatably inserted into the mounting hole 661. The middle of the rotating arm 600 is fixedly connected to the rotating shaft 650. A connecting rod is welded to the top of the scraper plate 610. The connecting rod is welded to the bottom of the rotating arm 600 so that each scraper plate 610 is arranged at intervals along the rotating arm 600. A detachable rubber plate 620 is installed at the bottom of the scraper plate 610. The bottom of the rubber plate 620 abuts against the bottom of the second cavity 140 and generates deformation. The rubber plate 620 and the rotating arm 600 are connected. It has an angle of about 45 degrees. When the rotating arm 600 rotates, the rubber plate 620 can push and scrape the sludge at the bottom of the second cavity 140 to the sludge discharge port 310 and the edges of the sweeping areas of each rubber plate 620 can overlap. A plurality of stirring rods 630 are welded on the rotating arm 600 at intervals. The stirring rods 630 are parallel to the rotating axis 650 of the rotating shaft 650. A water divider 631 is provided on the side of the stirring rod 630, and the direction of the water divider 631 is consistent with the rotation direction of the rotating arm 600.

[0044] In addition, two transverse tie rods 670 are symmetrically arranged on the side of the rotating shaft 650, and the two transverse tie rods 670 are located between the two ends of the rotating arm 600. A longitudinal pull rope 690 is connected between the end of the rotating arm 600 and the side of the rotating shaft 650 to ensure that the two ends of the rotating arm 600 will fall and deform. A pull rope 680 is connected between the end of the rotating arm 600 and the end of the transverse tie rod 670 to ensure that when the rotating arm 600 rotates, the end of the rotating arm 600 will not swing left and right, thereby providing sufficient rigidity for the rotating arm 600 when it rotates.

[0045] Next, the working principle of a stainless steel water purification device in this embodiment is described in detail so that those skilled in the art can better understand the present invention:

[0046] On rainy days, especially on rainy days, the water collection port 150 can be used to collect rainwater. In addition, other water sources can flow into the static mixer through the pipeline to be mixed with the coagulant and the coagulant aid, and then be input into the first cavity 130 through the water inlet pipe 110. The water first flows from top to bottom in the first cavity 130, and forms a forward vortex through the first spiral plate 160 when flowing through the first cavity 130, and then flows through the second cavity 140 from bottom to top, and forms a reverse vortex through the joint action of the second spiral and the third spiral when flowing through the second cavity 140, and finally flows into the water storage box 430 through the water outlet 440, flows into the filter 200 through the water outlet pipe 120, and flows into the water storage tank for storage after being filtered by the filter 200, so as to supply water to residents. When the water flows from the first cavity 130 to the second cavity 140 , the path can be quickly turned back and the direction of the flow can be quickly changed, so that the flocculant, the coagulant aid and the raw water can be fully mixed to improve the flocculation efficiency.

[0047] The device can also periodically start the dredging and stirring auxiliary device composed of the rotating arm 600, the scraper blade 610 and the stirring rod 630. While scraping the sludge at the bottom of the second cavity 140, it can also assist in stirring the water in the reaction precipitator 100 to further improve the flocculation efficiency.

[0048] To summarize, the stainless steel water purification equipment in this embodiment is provided with a first cavity 130 and a second cavity 140 which are nested in the reaction precipitator 100. The bottoms of the two cavities are connected, and a first spiral plate 160 and a second spiral plate 170 are respectively provided on the sides of the two cavities. When the mixed liquid or rainwater flows from top to bottom in the first cavity 130, a forward vortex is generated, and when the mixed liquid or rainwater flows from bottom to top in the second cavity 140, a reverse vortex is generated. When the flow direction is reversed, the two vortices can form a strong impact force, thereby accelerating the flocculation efficiency. Compared with the traditional structure, it has the advantages of large load resistance, not easy to be blocked, and high reaction efficiency.

[0049] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention after reading this specification, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A stainless steel water purification device, comprising: A coagulant dosing system, a coagulant aid dosing system, a static mixer, a reaction precipitator, a filter and a water storage tank, wherein the coagulant dosing system and the coagulant aid dosing system are connected to the static mixer at the same time, the static mixer is connected to the reaction precipitator through an inlet pipe, the reaction precipitator is connected to a plurality of filters through an outlet pipe, and each filter is connected to the water storage tank, characterized in that: a first cavity and a second cavity are arranged inside the reaction precipitator, the second cavity surrounds the outer periphery of the first cavity, a water collecting port communicating with the outside is arranged on the top of the first gun body, the bottom of the first cavity is communicated with the bottom of the second gun body, a first spiral plate is arranged on the inner wall of the first cavity, a second spiral plate is arranged on the inner wall of the second cavity, and the first spiral plate and the second spiral plate have the same rotation direction; the first cavity gradually narrows from top to bottom, and the second cavity gradually narrows from bottom to top, the inlet pipe is communicated with the top of the first cavity and is located above the first spiral plate, and the outlet pipe is communicated with the top of the second cavity.

2. The stainless steel water purification equipment according to claim 1, characterized in that: A mud storage cavity is provided below the second cavity, a mud discharge port connected to the mud storage cavity is provided at the bottom of the second cavity, the bottom of the second cavity is inclined toward the mud discharge port, a mud discharge groove is provided at the bottom of the mud storage cavity, the bottom of the mud storage cavity is inclined toward the mud discharge groove, and a mud discharge screw is provided in the mud discharge groove.

3. The stainless steel water purification equipment according to claim 2, characterized in that: The reaction precipitator includes an outer tank body and an inner tank body, the inner tank body is arranged in the outer tank body, the first cavity is opened in the inner tank body, the outer wall of the inner tank body and the inner wall of the outer tank body constitute the second cavity, the mud storage cavity is located at the bottom of the outer tank body, the bottom of the inner tank body shrinks toward its center, the water collection port is opened at the top of the inner tank body, and the bottom of the inner tank body is opened with a connecting port connected to the second cavity; the outer wall of the inner tank body is provided with a third spiral plate, the third spiral plate and the second spiral plate have the same rotation direction and its blades are interlaced with the blades of the second spiral plate.

4. The stainless steel water purification equipment according to claim 3, characterized in that: A screw sleeve is provided on the side of the outer tank body, a mud outlet is opened below the screw sleeve, one end of the mud discharge screw extends above the mud outlet and is rotatably connected to one end of the screw sleeve, and a screw driving device is provided at one end of the screw sleeve.

5. The stainless steel water purification equipment according to claim 3, characterized in that: An outer tank opening is provided on the top of the outer tank body, and the top of the inner tank body extends upward from the outer tank opening. A blocking cover is provided between the outer tank opening and the outer wall of the inner tank body, and the top of the blocking cover is lower than the top of the outer tank body. A water flow groove is provided on the outer periphery of the water collection port, and the water flow groove is located above the blocking cover.

6. The stainless steel water purification equipment according to claim 5, characterized in that: A plurality of water storage boxes are arranged on the periphery of the outer tank body, the top of the water storage box is flush with the top of the outer tank body, the side of the outer tank body is provided with a water outlet, the water outlet extends upward from the top of the outer tank body and is communicated with the side of the water storage box, and the water outlet pipe is connected to the bottom end of the water storage box.

7. The stainless steel water purification equipment according to claim 2, characterized in that: It also includes a rotating arm and a scraper blade, wherein the middle portion of the rotating arm is rotatably mounted on the bottom of the second cavity and its rotation axis coincides with the axis of the mud discharge port, the scraper blade is arranged below the rotating arm and spaced along the rotating arm, a rubber plate is provided at the bottom of the scraper blade, the bottom of the rubber plate abuts against the bottom of the second cavity and deforms, an angle is formed between the rubber plate and the rotating arm, so that when the rotating arm rotates, the rubber plate can push and scrape the mud at the bottom of the second cavity toward the mud discharge port.

8. The stainless steel water purification equipment according to claim 7, characterized in that: A plurality of stirring rods are arranged at intervals on the rotating arm. The stirring rods are parallel to the rotating axis of the rotating arm. A water cut angle is arranged on the side of the stirring rod. The direction of the water cut angle is consistent with the rotating direction of the rotating arm.

9. The stainless steel water purification equipment according to claim 7, characterized in that: It also includes a stirring drive unit, a rotating shaft and a shaft seat, wherein the shaft seat is installed at the mud discharge port, and a mounting hole is provided on the shaft seat. The stirring drive unit is installed at the water collection port, and the driving end of the stirring drive unit is connected to one end of the rotating shaft and can drive the rotating shaft to rotate, and the other end of the rotating shaft is rotatably inserted into the mounting hole, and the middle part of the rotating arm is fixedly connected to the rotating shaft.

10. The stainless steel water purification equipment according to claim 9, characterized in that: A bridge frame is provided at the water collection port, and the bridge frame is a double-layer structure. The stirring drive unit of the bridge frame is installed on the bottom layer of the bridge frame, and a maintenance port corresponding to the position of the stirring drive unit is opened on the top layer of the bridge frame. A ladder is provided on the outside of the reaction precipitator, and the top of the ladder is connected to one end of the bridge frame.

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