Struvite recovery reactor with descaling structure

Abstract

The embodiment of the utility model provides a struvite recovery reactor with a descaling structure, which relates to the technical field of environmental engineering water treatment and comprises a reaction cavity, a spray pipe is arranged in the reaction cavity, and a lifting part is slidably mounted in the reaction cavity. The lifting part comprises a fixed support fixedly installed in the reaction cavity and a lifting ring installed outside the fixed support in a lifting mode, the lifting ring is movably provided with a rotating screw rod through the side edge of the fixed support to adjust the height, and a lifting sliding block fixedly installed in the lifting ring is in threaded connection with the rotating screw rod; when descaling operation needs to be conducted on the interior of the reaction cavity, a driving motor can drive a driving gear to rotate, a driving gear ring drives a transmission gear to rotate, then a rotating screw fixedly installed at the lower end is driven to rotate, the rotating screw drives a lifting ring to descend, and the lifting ring is attached to the inner wall of the reaction cavity to be installed; and dirt at the upper end of the inner wall of the reaction cavity is scraped.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental engineering water treatment, in particular to a struvite recovery reactor with a descaling structure. Background Art

[0002] A struvite recovery reactor is a device specially designed for recovering phosphorus resources from wastewater. Its working principle is based on the struvite crystallization process (also known as magnesium ammonium phosphate crystallization, with the chemical formula MgNH4PO4·6H2O). This reactor can remove phosphorus from water bodies and convert phosphorus into solid struvite fertilizer for agricultural or other industrial uses, which helps to achieve resource recovery and reuse in wastewater treatment and reduce environmental pollution. In a typical struvite recovery reactor, a magnesium source (such as magnesium chloride or magnesium sulfate) and an alkali (such as sodium hydroxide or lime) are usually added to the wastewater to adjust the pH value of the wastewater and promote the precipitation of phosphorus. This type of reactor is widely used in sewage treatment plants, livestock wastewater treatment, fertilizer production and other industries as an important technical means to achieve phosphorus recycling and environmental protection.

[0003] In actual application, dirt is easily accumulated on the inner wall and structural parts of the reactor, including incompletely reacted chemicals, microbial mucosa, and struvite particles. These dirt not only affect the heat transfer efficiency and processing capacity of the reactor, but also lead to increased maintenance costs and reduced treatment effects, and it is inconvenient to remove the dirt. Utility Model Content

[0004] The utility model aims to provide a struvite recovery reactor with a descaling structure, which can prevent the problem that the scale affects the heat transfer efficiency and processing capacity of the reactor, and also causes the maintenance cost to increase and the processing effect to decrease.

[0005] The utility model provides a struvite recovery reactor with a descaling structure, comprising:

[0006] A reaction chamber, wherein a spray pipe is arranged inside the reaction chamber, and a lifting part is slidably installed inside the reaction chamber;

[0007] A lifting part, the lifting part comprises a fixed support fixedly mounted inside the reaction chamber and a lifting ring lifted and mounted outside the fixed support, the lifting ring is adjusted in height by a rotating screw movably mounted on the side of the fixed support, and a lifting slider fixedly mounted inside the lifting ring is threadedly connected to the rotating screw;

[0008] The lower end of the lifting ring is arranged in an inclined shape, and the inclined ring body is installed in contact with the inner wall of the reaction chamber;

[0009] A transmission gear and a driving gear ring that drives the transmission gear to rotate are fixedly installed on the upper end of the rotating screw. The driving gear ring is movably installed in the inner wall of the reaction chamber through a limit bearing, and the driving gear is meshed and installed on one side of the driving gear ring.

[0010] Preferably, a limiting groove is provided at the upper end of the fixing bracket, and the lifting slider is slidably installed inside the limiting groove and matches the size of the limiting groove.

[0011] Preferably, the spray pipe includes a spray pipe and a liquid pipe fixedly installed on both sides of the spray pipe, nozzles are arranged around the outer side of the liquid pipe, the spray pipe is installed inside the reaction chamber through a bracket, and the liquid pipe is connected to the liquid supply part and the booster pump outside the reaction chamber.

[0012] Preferably, the nozzle comprises a fixed circular tube fixedly mounted on the outside of the spray pipe and a telescopic head movably mounted on the inside of the fixed circular tube, and a liquid outlet is arranged around the upper end of the telescopic head.

[0013] Preferably, an elastic portion is movably mounted on one side of the telescopic head, and the cross section of the elastic portion is V-shaped.

[0014] Preferably, the liquid outlets are arranged obliquely outward and are evenly arranged on one side of the telescopic head.

[0015] Preferably, a stirring portion is arranged in the middle of the reaction chamber, and a crushing portion is fixedly installed at the lower end of the stirring portion.

[0016] Preferably, the crushing part comprises a rotating disk fixedly mounted on the upper end of the driving shaft of the stirring part and crushing teeth fixedly mounted on the outer side of the rotating disk, and a plurality of groups of crushing teeth are respectively arranged on the outer side of the rotating disk.

[0017] The embodiment of the utility model provides a struvite recovery reactor with a descaling structure. When it is necessary to descale the inside of the reaction chamber, the driving motor can drive the driving gear to rotate, and the driving gear ring drives the transmission gear to rotate, thereby driving the rotating screw fixed at the lower end to rotate, and the rotating screw drives the lifting ring to descend, and the lifting ring is installed in contact with the inner wall of the reaction chamber, thereby scraping the dirt on the upper end of the inner wall of the reaction chamber, thereby removing the crystallized dirt blocks on the inner wall of the reaction chamber, avoiding crystallization affecting the normal use of the reaction chamber and causing the reaction chamber tube wall to be blocked, and the lifting part is arranged inside the reaction chamber. It can be cleaned by timed driving to ensure that there is no dirt accumulation inside the reaction chamber, which is convenient for removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the reaction chamber of an embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the spray pipe structure of an embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of a spray pipe according to an embodiment of the utility model.

[0023] Figure 5 For the utility model embodiment Figure 4 Enlarged structural diagram at A in the middle.

[0024] Figure 6 It is a schematic diagram of the lifting part structure of an embodiment of the utility model.

[0025] Figure 7 For the utility model embodiment Figure 6 Enlarged structural diagram at B in the middle.

[0026] Figure 8 For the utility model embodiment Figure 6 Enlarged structural diagram at point C in the middle.

[0027] Fig. 9 This is a schematic diagram of the structure of the crushing part of an embodiment of the utility model.

[0028] Description of the drawings: 100, support frame; 200, reaction chamber; 300, spray part; 310, spray pipe; 320, liquid pipe; 330, nozzle; 331, fixed circular tube; 332, elastic part; 333, telescopic head; 334, liquid outlet; 400, lifting part; 410, fixed bracket; 411, limiting groove; 420, lifting ring; 421, lifting slider; 430, rotating screw; 440, transmission gear; 450, driving gear; 460, driving gear ring; 500, stirring part; 510, crushing part; 511, rotating disk; 512, crushing teeth. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0034] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a struvite recovery reactor with a descaling structure of the utility model in conjunction with the accompanying drawings.

[0035] like Figure 1-Figure 9As shown, an embodiment of the utility model provides a struvite recovery reactor with a descaling structure, including a reaction chamber 200, which is installed on the upper end of a support frame 100 and is used to recover phosphorus using a struvite method. A spray portion 300 for spraying descaling liquid is provided inside the reaction chamber 200, and a lifting portion 400 for scraping and descaling the inside of the reaction chamber 200 is also slidably installed inside the reaction chamber 200.

[0036] The lifting part 400 includes a fixed bracket 410 fixedly installed inside the reaction chamber 200 for support and fixation, and a lifting ring 420 lifted and installed outside the fixed bracket 410 for scraping the inner wall of the reaction chamber 200. The lifting ring 420 is movably installed with a rotating screw 430 on the side of the fixed bracket 410 to adjust the height. A lifting slider 421 fixedly installed inside the lifting ring 420 is threadedly connected with the rotating screw 430. A transmission gear 440 for driving the rotating screw 430 to rotate and a driving gear ring 460 for driving the transmission gear 440 to rotate are fixedly installed on the upper end of the rotating screw 430. The driving gear ring 460 is movably installed in the inner wall of the reaction chamber 200 through a limit bearing. A driving gear 450 for driving the driving gear ring 460 to rotate is meshed and installed on one side of the driving gear ring 460. The driving gear 450 is driven by a driving motor fixedly installed at the upper end, and the axis of the driving gear 450 is connected to the output end of the driving motor.

[0037] When it is necessary to descale the inside of the reaction chamber 200, the driving motor can be used to drive the driving gear 450 to rotate, and the driving gear ring 460 can drive the transmission gear 440 to rotate, thereby driving the rotating screw 430 fixed at the lower end to rotate, and the rotating screw 430 drives the lifting ring 420 to descend, and the lifting ring 420 is installed in contact with the inner wall of the reaction chamber 200, thereby scraping the dirt on the upper end of the inner wall of the reaction chamber 200, thereby removing the crystallized dirt blocks on the inner wall of the reaction chamber 200, and avoiding the crystallization from affecting the normal use of the reaction chamber 200 and causing the wall of the reaction chamber 200 to be blocked, and the lifting part 400 is arranged inside the reaction chamber 200. The cleaning can be driven regularly to ensure that there is no dirt accumulation inside the reaction chamber 200, and it is easy to remove.

[0038] The lower end of the lifting ring 420 is arranged in an inclined shape, and the inclined ring body is installed in contact with the inner wall of the reaction chamber 200, which is convenient for scraping dirt on the inner wall of the reaction chamber 200 and has a better scraping effect.

[0039] The upper end of the fixed bracket 410 is provided with a plurality of limit grooves 411 for installing the lifting ring 420. The lifting slider 421 is slidably installed inside the limit groove 411 and matches the size of the limit groove 411. The lifting slider 421 can be effectively limited in movement to prevent the lifting ring 420 from shaking during movement.

[0040] The spraying part 300 includes a spray pipe 310 for spraying and scraping the inner wall of the reaction chamber 200 and a liquid pipe 320 fixedly installed on both sides of the spray pipe 310 for passing the spray liquid. The outer side of the liquid pipe 320 is surrounded by a nozzle 330 for spraying the spray liquid into the inner wall of the reaction chamber 200. The spray pipe 310 is installed inside the reaction chamber 200 through a bracket, and the liquid pipe 320 is connected to the liquid supply part and the booster pump outside the reaction chamber 200.

[0041] When descaling the reaction chamber 200, liquid can be passed through the liquid pipe 320 to the internal spray pipe 310, and then sprayed out through the nozzle 330 to spray the descaling liquid onto the inner wall of the reaction chamber 200, so as to dissolve the scale and facilitate the subsequent lifting and descaling operation of the lifting part 400.

[0042] Among them, the spray liquid can use acidic solutions (such as hydrochloric acid, phosphoric acid, etc.) to soak or circulate through the scaling area to dissolve scales such as carbonates and phosphates. Chelating agents (such as EDTA, pyrophosphates, polyphosphates, etc.) can also be added. They can form stable water-soluble complexes with metal ions such as magnesium and calcium to prevent these ions from forming struvite precipitation with phosphate, ammonium, etc., and can also be used to remove the scale layer that has been formed.

[0043] The nozzle 330 includes a fixed circular tube 331 fixedly installed on the outside of the spray pipe 310 and a telescopic head 333 movably installed inside the fixed circular tube 331 for spraying. A liquid outlet 334 for spraying the spray liquid is arranged around the upper end of the telescopic head 333. An elastic part 332 for allowing the telescopic head 333 to be telescoped is movably installed on one side of the telescopic head 333. The elastic part 332 can be made of silicone or rubber material, and the cross-section is arranged in a V-shape.

[0044] After the delivery pump delivers the spray liquid into the spray pipe 310, the internal pressure extends the telescopic head 333, and then the spray liquid can be sprayed out. When the spraying stops, the elastic part 332 can drive the telescopic head 333 to retract, preventing the internal reaction material from entering the spray pipe 310, thereby facilitating the spraying operation.

[0045] The liquid outlets 334 are arranged obliquely outward and evenly arranged on one side of the telescopic head 333, so that the spraying range is increased and the descaling effect is better.

[0046] A stirring portion 500 for mixing and stirring the internal liquid is arranged in the middle of the reaction chamber 200. The driving shaft of the stirring portion 500 is connected to the output end of the driving motor. A crushing portion 510 for removing blocky dirt is fixedly installed at the lower end of the stirring portion 500.

[0047] The crushing part 510 includes a rotating disk 511 fixedly mounted on the upper end of the driving shaft of the stirring part 500 and crushing teeth 512 fixedly mounted on the outer side of the rotating disk 511 for crushing dirt. A plurality of groups of crushing teeth 512 are respectively arranged on the outer side of the rotating disk 511 .

[0048] When the driving motor drives the stirring part 500 to rotate and mix materials, the output shaft can drive the crushing teeth 512 to rotate, thereby crushing the large pieces of dirt scraped off by the lifting part 400, avoiding the large pieces of dirt from clogging the discharge pipe during discharge, thereby facilitating the discharge of the dirt.

[0049] The working principle of a struvite recovery reactor with a descaling structure: when the descaling operation is required inside the reaction chamber 200, the driving motor can be used to drive the driving gear 450 to rotate, and the driving gear ring 460 can drive the transmission gear 440 to rotate, thereby driving the rotating screw 430 fixed at the lower end to rotate, and the rotating screw 430 drives the lifting ring 420 to descend, and the lifting ring 420 is installed in contact with the inner wall of the reaction chamber 200, thereby scraping the dirt on the upper end of the inner wall of the reaction chamber 200, thereby removing the crystallized dirt blocks on the inner wall of the reaction chamber 200, and avoiding crystallization affecting the normal use of the reaction chamber 200 and causing the wall of the reaction chamber 200 to be blocked, and the lifting part 400 is arranged inside the reaction chamber 200. The cleaning can be driven regularly to ensure that there is no dirt accumulation inside the reaction chamber 200, which is convenient for removal.

[0050] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A struvite recovery reactor with a descaling structure, characterized in that: include: A reaction chamber, wherein a spraying part is arranged inside the reaction chamber, and a lifting part is also slidably installed inside the reaction chamber; A lifting part, the lifting part comprises a fixed support fixedly mounted inside the reaction chamber and a lifting ring lifted and mounted outside the fixed support, the lifting ring is adjusted in height by a rotating screw movably mounted on the side of the fixed support, and a lifting slider fixedly mounted inside the lifting ring is threadedly connected to the rotating screw; The lower end of the lifting ring is arranged in an inclined shape, and the inclined ring body is installed in contact with the inner wall of the reaction chamber; A transmission gear and a driving gear ring that drives the transmission gear to rotate are fixedly installed on the upper end of the rotating screw. The driving gear ring is movably installed in the inner wall of the reaction chamber through a limit bearing, and the driving gear is meshed and installed on one side of the driving gear ring.

2. The struvite recovery reactor with a descaling structure according to claim 1, characterized in that: A limiting groove is provided at the upper end of the fixing bracket, and the lifting slider is slidably installed inside the limiting groove and matches the size of the limiting groove.

3. The struvite recovery reactor with a descaling structure according to claim 2, characterized in that: The spray part includes a spray pipe and liquid pipes fixedly installed on both sides of the spray pipe, nozzles are arranged around the outer side of the liquid pipe, the spray pipe is installed inside the reaction chamber through a bracket, and the liquid pipe is connected to the liquid supply part and the booster pump outside the reaction chamber.

4. The struvite recovery reactor with a descaling structure according to claim 3, characterized in that: The nozzle comprises a fixed circular tube fixedly mounted outside the spray pipe and a telescopic head movably mounted inside the fixed circular tube, and a liquid outlet is arranged around the upper end of the telescopic head.

5. The struvite recovery reactor with a descaling structure according to claim 4, characterized in that: An elastic part is movably mounted on one side of the telescopic head, and the cross section of the elastic part is arranged in a V shape.

6. The struvite recovery reactor with a descaling structure according to claim 5, characterized in that: The liquid outlets are arranged obliquely outward and evenly arranged on one side of the telescopic head.

7. The struvite recovery reactor with a descaling structure according to claim 6, characterized in that: A stirring part is arranged in the middle of the reaction chamber, and a crushing part is fixedly installed at the lower end of the stirring part.

8. The struvite recovery reactor with a descaling structure according to claim 7, characterized in that: The crushing part comprises a rotating disk fixedly mounted on the upper end of the driving shaft of the stirring part and crushing teeth fixedly mounted on the outer side of the rotating disk, and a plurality of groups of crushing teeth are respectively arranged on the outer side of the rotating disk.

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