Integrated chemical cleaning device for crystallization fluidized bed
The cleaning device, which combines spraying and backwashing with ultrasonic vibration, solves the problem of scaling on the inner wall of the fluidized bed and the water distribution head, ensuring the efficient operation of the fluidized bed and the quality of the effluent.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING QIWO ECOLOGICAL TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
After use, the inner wall of the fluidized bed reactor and the water distribution head are severely scaled, and crystal carriers or impurities accumulate in the pores of the water distribution head, making cleaning difficult and affecting fluidization uniformity and crystallization efficiency.
An integrated chemical cleaning device for crystallization fluidized beds was designed, comprising a spraying mechanism, a backwashing mechanism, and an ultrasonic vibration mechanism. Through the synergistic effect of spraying cleaning fluid, backwashing, and ultrasonic vibration, the device thoroughly removes dirt from the inner wall of the reactor and the water distribution head.
This achieves comprehensive cleaning of the fluidized bed, ensuring the crystallization efficiency and effluent quality of the fluidized bed, and avoiding fluidization inhomogeneity problems caused by dirt and impurities.
Smart Images
Figure CN224195425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crystallization fluidized bed technology, and in particular to an integrated chemical cleaning device for crystallization fluidized beds. Background Technology
[0002] A fluidized bed is a device or system that uses a fluid (gas or liquid) to suspend solid particles in a fluid-flowing state. Its core principle is that when the fluid passes through the particle bed at a specific speed, the interparticle forces and the fluid drag reach a balance, making the particles flow like a fluid. Crystallization fluidized beds combine induced crystallization technology and fluidized bed technology. Targeting pollutants that need to be removed from wastewater, specific chemical agents are added to induce the target ions in the wastewater to crystallize on the surface of the seed crystal in a certain crystal form. The removal of the crystallization products achieves the removal of target ions from the water body and the recovery and reuse of usable resources. It is widely used in industrial wastewater softening, heavy metal removal, etc.
[0003] After use, the inner wall of the fluidized bed reactor and the water distribution head are severely scaled, and crystal carriers or impurities accumulate in the pores of the water distribution head, making maintenance and cleaning difficult, damaging the fluidization uniformity, and resulting in reduced fluidized bed crystallization efficiency and substandard effluent. To address these issues, those skilled in the art have proposed an integrated chemical cleaning device for crystallizing fluidized beds.
[0004] To address these issues, those skilled in the art have proposed an integrated chemical cleaning device for crystallization fluidized beds. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] In view of the fact that the inner wall of the reactor and the water distribution head in the above or existing technologies have serious scaling, crystal carriers or impurities accumulate in the pores of the water distribution head, making maintenance and cleaning difficult, this utility model is proposed.
[0007] Therefore, the purpose of this invention is to provide an integrated chemical cleaning device for a crystallization fluidized bed.
[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an integrated chemical cleaning device for crystallization fluidized bed, comprising a base for supporting the overall structure;
[0009] The reactor shell is disposed above the base, and a fluidized bed reaction space is formed inside it;
[0010] The water distribution head is installed inside the outer shell of the reactor near the bottom to support solid particles and distribute fluid.
[0011] A spraying mechanism is located inside the upper part of the reactor outer shell and is used to spray cleaning liquid onto the inner wall of the reactor outer shell.
[0012] A backwashing mechanism is provided on the surface of the base, and the backwashing mechanism is located below the water distribution head, for spraying cleaning fluid upward to rinse the water distribution head;
[0013] An ultrasonic vibration mechanism is disposed between the base and the water distribution head to transmit vibration to the water distribution head to assist in cleaning.
[0014] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, a feed pipe is inserted into the surface of the reactor shell, and an exhaust pipe is inserted into the center of the surface of the reactor shell.
[0015] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, wherein: a discharge pipe is horizontally inserted into the outer wall of one side of the reactor shell near the water distribution head above, and a slag discharge pipe is vertically inserted into the center of the bottom outer wall of the base.
[0016] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, the spraying mechanism includes an annular water pipe, which is installed on the inner circumference of the reactor shell near the top. An inlet pipe is inserted into one side of the outer wall of the annular water pipe, and one end of the inlet pipe is located on the outer side of the reactor shell. Multiple nozzles are installed in a ring array on the bottom outer wall of the annular water pipe.
[0017] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, the water distribution head has multiple notches at the edge of its circumferential outer wall.
[0018] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, wherein: an installation port is opened on one side of the outer wall of the reactor shell near the lower part of the water distribution head, and an inlet pipe is inserted into the installation port.
[0019] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, wherein: two ultrasonic vibration mechanisms are installed on the surface of the base, each ultrasonic vibration mechanism includes a sealed box, the top of which is fixed to the bottom outer wall of the water distribution head, and multiple vibration components are arranged inside the sealed box.
[0020] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, the vibration component includes an ultrasonic generator, which is installed inside the sealed box. An ultrasonic transducer is provided at one end of the ultrasonic generator, and an amplitude transformer is screwed to one end of the ultrasonic transducer. A transmission rod is keyed to one end of the amplitude transformer, and one end of the transmission rod is fixed to the bottom outer wall of the water distribution head.
[0021] As a preferred embodiment of the integrated chemical cleaning device for crystallization fluidized bed of this utility model, the reverse flushing mechanism includes an arc-shaped water pipe, two of which are respectively installed on the surface of the base near both sides. A water pipe is horizontally inserted into the outer wall of one side of the arc-shaped water pipe, one end of which is located on the outer side of the reactor shell. Multiple nozzles are evenly distributed on the surface of the arc-shaped water pipe, and the nozzles form an angle of 30-45 degrees with the water distribution head.
[0022] The beneficial effects of this integrated chemical cleaning device for a crystallizing fluidized bed are as follows: the spray mechanism cleans the upper inner wall, the backwash mechanism cleans the lower water distribution head, and ultrasonic vibration assists in the removal of stubborn dirt, forming a three-dimensional cleaning network encompassing the upper, middle, and lower parts. The spray provides liquid flushing force to flush the inner wall of the reactor, and the backwash solves the problem of water distribution head blockage. Ultrasonic enhancement of micro-cleaning removes dirt from the pores of the water distribution head, thus thoroughly cleaning the fluidized bed after use without affecting crystallization efficiency or treatment efficiency, ensuring that the effluent meets standards. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0024] Figure 1 This is a schematic diagram of the internal structure of an integrated chemical cleaning device for crystallization fluidized bed.
[0025] Figure 2 This is a schematic diagram of the overall structure of an integrated chemical cleaning device for crystallization fluidized bed.
[0026] Figure 3 This is a schematic diagram of the base, backwashing mechanism, and ultrasonic vibration mechanism of the integrated chemical cleaning device for crystallization fluidized bed.
[0027] Figure 4 This is a schematic diagram of the spray mechanism of an integrated chemical cleaning device for crystallization fluidized beds.
[0028] Figure 5 This is a schematic diagram of the ultrasonic vibration mechanism of an integrated chemical cleaning device for a crystallization fluidized bed.
[0029] In the diagram: 100, base; 101, reactor outer shell; 102, feed pipe; 103, exhaust pipe; 104, discharge pipe; 105, water distribution head; 106, notch; 107, slag discharge pipe; 200, spraying mechanism; 201, annular water pipe; 202, water inlet pipe; 203, nozzle; 300, backwashing mechanism; 301, arc-shaped water pipe; 302, nozzle; 303, water pipe; 400, ultrasonic vibration mechanism; 401, sealed box; 402, ultrasonic generator; 403, ultrasonic transducer; 404, amplitude transformer; 405, transmission rod. Detailed Implementation
[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0033] Example 1
[0034] Reference Figure 1 and Figure 2 This is the first embodiment of the present utility model. This embodiment provides an integrated chemical cleaning device for crystallization fluidized beds, which can achieve comprehensive cleaning inside the fluidized bed from top to bottom, and thoroughly clean the fluidized bed. It includes a base 100 for supporting the overall structure.
[0035] The reactor outer shell 101 is positioned above the base 100, and a fluidized bed reaction space is formed inside it.
[0036] The water distribution head 105 is installed inside the reactor shell 101 near the bottom to support solid particles and distribute fluid.
[0037] The spraying mechanism 200 is located inside the upper part of the reactor shell 101 and is used to spray cleaning liquid onto the inner wall of the reactor shell 101.
[0038] A backwashing mechanism 300 is disposed on the surface of the base 100. The backwashing mechanism 300 is located below the water distribution head 105 and is used to spray cleaning fluid upward to rinse the water distribution head 105.
[0039] An ultrasonic vibration mechanism 400 is disposed between the base 100 and the water distribution head 105, and is used to transmit vibration to the water distribution head 105 to assist in cleaning.
[0040] During operation, liquid enters from below the water distribution head 105 at the bottom of the reactor shell 101, and is evenly distributed through the pores of the water distribution head 105, forming an upward fluid force. The material enters the interior of the reactor shell 101 through the top, falls into the fluidized bed and mixes with the fluid. When the fluid velocity exceeds the minimum fluidization velocity of the solid particles, the particles begin to suspend and violently agitate, forming a fluidized bed, achieving efficient mass and heat transfer between liquid and solid. After the treatment process is completed, the liquid is discharged. After a period of normal operation, it is necessary to remove residual material and impurities from the inner wall of the reactor shell 101, the water distribution head 105, and the bed. The cleaning liquid is sprayed out from the spray mechanism 200 at a certain pressure, forming a spiral... The swirling spray covers and washes away the adhering substances on the top and side walls of the reactor shell 101. As the cleaning liquid flows along the wall, it carries the dirt down and eventually gathers on the surface of the base 100. The high-pressure cleaning liquid is sprayed upward from the reverse flushing mechanism 300, impacting the pores of the water distribution head 105 in the opposite direction to remove clogging particles, impurities, or scale. Driven by the ultrasonic vibration mechanism 400, the water distribution head 105 generates micro-vibrations at high frequency (20-40kHz), causing stubborn dirt (such as sticky materials and hard scale) in the pores to loosen and fall off due to the resonance effect. Then, it is discharged outward from the base 100, thereby thoroughly flushing the inside of the reactor shell 101.
[0041] Example 2
[0042] Reference Figure 1 , Figure 2 and Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, a feed pipe 102 is inserted into the surface of the reactor shell 101, and an exhaust pipe 103 is inserted into the center of the surface of the reactor shell 101.
[0043] Specifically, a discharge pipe 104 is horizontally inserted into the outer wall of one side of the reactor shell 101 above the water distribution head 105, and a slag discharge pipe 107 is vertically inserted into the center of the bottom outer wall of the base 100.
[0044] Furthermore, the spraying mechanism 200 includes an annular water pipe 201, which is installed on the inner circumference of the reactor shell 101 near the top. An inlet pipe 202 is inserted into one side of the outer wall of the annular water pipe 201, with one end of the inlet pipe 202 located on the outer side of the reactor shell 101. Multiple nozzles 203 are installed in a ring array on the bottom outer wall of the annular water pipe 201.
[0045] Among them, multiple notches 106 are opened at the edge of the outer circumference of the water distribution head 105.
[0046] It should be noted that an installation port is opened on one side of the outer wall of the reactor shell 101 near the lower part of the water distribution head 105, and an inlet pipe 108 is inserted into the installation port.
[0047] In use, the liquid enters through the inlet pipe 108 and flows in from below the water distribution head 105 at the bottom of the reactor shell 10. It is evenly distributed through the pores of the water distribution head 105. The material enters the interior of the reactor shell 101 through the top feed pipe 102, falls into the fluidized bed and mixes with the fluid. The particles flow up and down with the fluid in the bed to complete the treatment process. The treated material is discharged from the side discharge pipe 104, and the gaseous products are discharged from the top exhaust pipe 103. When rinsing is performed later, the rinsing liquid is discharged from the slag discharge pipe 107. Each pipe is equipped with a solenoid valve to control the opening and closing, and a controller is also provided for coordinated control.
[0048] Example 3
[0049] Reference Figures 1 to 5 This is the third embodiment of the present invention. Unlike the previous embodiment, two ultrasonic vibration mechanisms 400 are installed on the surface of the base 100. Each ultrasonic vibration mechanism 400 includes a sealing box 401. The top of the sealing box 401 is fixed to the bottom outer wall of the water distribution head 105. Multiple vibration components are arranged inside the sealing box 401.
[0050] Specifically, the vibration assembly includes an ultrasonic generator 402, which is installed inside the sealed box 401. An ultrasonic transducer 403 is provided at one end of the ultrasonic generator 402, and an amplitude transformer 404 is screwed to one end of the ultrasonic transducer 403. A transmission rod 405 is keyed to one end of the amplitude transformer 404, and one end of the transmission rod 405 is fixed to the bottom outer wall of the water distribution head 105.
[0051] Furthermore, the backwashing mechanism 300 includes an arc-shaped water pipe 301. Two arc-shaped water pipes 301 are respectively installed on the surface of the base 100 near both sides. A water pipe 303 is horizontally inserted into the outer wall of one side of the arc-shaped water pipe 301. One end of the water pipe 303 is located on the outside of the reactor shell 101. Multiple nozzles 302 are evenly distributed on the surface of the arc-shaped water pipe 301.
[0052] In use, the ultrasonic generator 402 generates a high-frequency electrical signal → the ultrasonic transducer 403 converts it into mechanical vibration → the amplitude rod 404 amplifies the amplitude → the transmission rod 405 transmits the vibration to the water distribution head 105. The water distribution head 105 generates micro-amplitude vibration under high-frequency vibration, which loosens and removes stubborn dirt in the pores due to the resonance effect. The vibration and backwashing work together to achieve compound cleaning, which is especially suitable for fine particles or adhesives that are difficult to remove by traditional fluid flushing.
[0053] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An integrated chemical cleaning device for crystallization fluidized bed, characterized in that: include, The base (100) is used to support the overall structure; The reactor outer shell (101) is disposed above the base (100), and a fluidized bed reaction space is formed inside it; A water distribution head (105) is installed inside the reactor shell (101) near the bottom to support solid particles and distribute fluid. A spraying mechanism (200) is disposed above the inside of the reactor shell (101) and is used to spray cleaning liquid onto the inner wall of the reactor shell (101); A backwashing mechanism (300) is disposed on the surface of the base (100). The backwashing mechanism (300) is located below the water distribution head (105) and is used to spray cleaning fluid upward to rinse the water distribution head (105). An ultrasonic vibration mechanism (400) is disposed between the base (100) and the water distribution head (105) for transmitting vibration to the water distribution head (105) to assist in cleaning.
2. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 1, characterized in that: A feed pipe (102) is inserted into the surface of the reactor shell (101), and an exhaust pipe (103) is inserted into the center of the surface of the reactor shell (101).
3. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 2, characterized in that: A discharge pipe (104) is horizontally inserted into the outer wall of one side of the reactor shell (101) near the water distribution head (105), and a slag discharge pipe (107) is vertically inserted into the center of the bottom outer wall of the base (100).
4. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 3, characterized in that: The spraying mechanism (200) includes an annular water pipe (201), which is installed on the inner circumference of the reactor shell (101) near the top. An inlet pipe (202) is inserted into one side of the outer wall of the annular water pipe (201), with one end of the inlet pipe (202) located outside the reactor shell (101). Multiple nozzles (203) are installed in a ring array on the bottom outer wall of the annular water pipe (201).
5. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 4, characterized in that: The water distribution head (105) has multiple notches (106) at the edge of its outer circumference.
6. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 5, characterized in that: An installation port is provided on one side of the outer wall of the reactor shell (101) near the lower part of the water distribution head (105), and an inlet pipe (108) is inserted into the installation port.
7. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 6, characterized in that: Two ultrasonic vibration mechanisms (400) are mounted on the surface of the base (100). Each ultrasonic vibration mechanism (400) includes a sealed box (401). The top of the sealed box (401) is fixed to the bottom outer wall of the water distribution head (105). Multiple vibration components are arranged inside the sealed box (401).
8. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 7, characterized in that: The vibration assembly includes an ultrasonic generator (402), which is installed inside the sealed box (401). An ultrasonic transducer (403) is provided at one end of the ultrasonic generator (402), and an amplitude transformer (404) is screwed to one end of the ultrasonic transducer (403). A transmission rod (405) is keyed to one end of the amplitude transformer (404), and one end of the transmission rod (405) is fixed to the bottom outer wall of the water distribution head (105).
9. The integrated chemical cleaning device for crystallization fluidized bed as described in claim 8, characterized in that: The backwashing mechanism (300) includes an arc-shaped water pipe (301). Two arc-shaped water pipes (301) are respectively installed on the surface of the base (100) near both sides. A water pipe (303) is horizontally inserted into the outer wall of one side of the arc-shaped water pipe (301). One end of the water pipe (303) is located outside the outer shell of the reactor (101). Multiple nozzles (302) are evenly distributed on the surface of the arc-shaped water pipe (301).