Uniform stirring equipment for forming SCR (Selective Catalytic Reduction) catalyst
By introducing scrapers and heating and insulation systems into the mixing equipment, the problems of SCR catalyst raw materials adhering to the inner wall and insufficient heating are solved, and sufficient mixing of the raw materials and improvement of reaction efficiency are achieved.
Patent Information
- Application Number
- CN202422934879.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing stirring equipment cannot effectively prevent SCR catalyst raw materials from adhering to the inner wall and remains, and lacks heating and heat preservation functions, resulting in raw material waste and low reaction efficiency.
An SCR catalyst molding uniform stirring equipment was designed. The stirring motor drives the rotating rod to drive the horizontal plate and scraper to scrape the raw materials on the inner wall. At the same time, the raw materials are heated and kept warm through the hot water tank and circulating pump system.
It effectively avoids the residue of raw materials on the inner wall of the mixing equipment, improves the utilization rate of raw materials, and promotes the chemical reaction through heating and heat preservation.
Smart Images
Figure CN223404790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of SCR catalyst processing, in particular to SCR catalyst molding and uniform stirring equipment. Background Art
[0002] SCR catalyst, or selective catalytic reduction catalyst, is a substance used in selective catalytic reduction reactions. During this reaction, it can promote a chemical reaction between the reducing agent and nitrogen oxides under certain temperature and pressure conditions, converting harmful nitrogen oxides into harmless nitrogen. Common SCR catalysts include honeycomb and plate types. Extrusion molding is often used during processing. In order to ensure that the SCR catalyst raw material has appropriate viscosity and fluidity during extrusion, it needs to be stirred by stirring equipment.
[0003] Although existing stirring equipment can stir SCR catalyst raw materials, due to the certain viscosity of the SCR catalyst raw materials, they are easily adhered to the inner wall of the stirring equipment to form residues, resulting in a certain amount of raw material waste. At the same time, in order to ensure uniform mixing and chemical reaction of the SCR catalyst raw materials, it is usually necessary to heat and keep the raw materials warm to ensure better reaction of the substances in the raw materials. However, the existing stirring device does not have the heating and heat preservation function. For this reason, we propose an SCR catalyst molding uniform stirring device. Utility Model Content
[0004] The purpose of the utility model is to provide an SCR catalyst molding uniform stirring device to solve the problem raised in the above background technology that although the existing stirring device can stir the SCR catalyst raw material, the SCR catalyst raw material has a certain viscosity and is easily adhered to the inner wall of the stirring device to form residue, thereby causing a certain amount of raw material waste. At the same time, in order to ensure uniform mixing and chemical reaction of the SCR catalyst raw material, it is usually necessary to heat and keep the raw material warm to ensure better reaction of substances in the raw material, but the existing stirring device does not have the heating and heat preservation function.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an SCR catalyst molding uniform stirring device, comprising a base, a hot water tank and a stirring barrel, wherein the stirring barrel is fixedly connected to the middle of the top of the base, the hot water tank is fixedly connected to the left side of the top of the base, a cover is provided on the top of the stirring barrel, a stirring motor is fixedly connected to the middle of the top of the cover by bolts, the output shaft of the stirring motor is fixedly connected to a rotating rod, the bottom end of the rotating rod extends to the inner cavity of the stirring barrel, a horizontal plate is sleeved on the upper side of the outer side wall of the rotating rod and located in the inner cavity of the stirring barrel, mounting plates are provided on the left and right sides of the inner side of the horizontal plate, and side scrapers are fixedly connected to the outer side walls of the mounting plates on the left and right sides and located in the inner cavity of the stirring barrel;
[0006] A chamber is opened around the inner periphery of the mixing barrel, and a circulation pump is fixedly connected to the top of the hot water tank.
[0007] As a further description of the above technical solution:
[0008] The cover is fixedly connected to the top of the mixing barrel by bolts, and fitting grooves are provided on the left and right sides of the top of the horizontal plate. The outer wall of the mounting plate is slidably connected to the inner wall of the fitting groove. The interior of the mounting plate is slidably connected to a mounting rod, and the two ends of the mounting rod are respectively fixedly connected to the left and right sides of the inner wall of the fitting groove. The outer wall of the mounting rod and the inner side of the mounting plate on the left and right sides are sleeved with springs, and the outer walls of the side scrapers on the left and right sides are slidably connected to the inner wall of the mixing barrel.
[0009] As a further description of the above technical solution:
[0010] The bottom of the mounting plate is fixedly connected to a bottom scraper, and the bottom of the bottom scraper is slidably connected to the bottom of the inner cavity wall of the mixing barrel. The outer wall of the rotating rod and the inner cavity of the mixing barrel are evenly provided with stirring rods. The bottom of the inner cavity wall of the mixing barrel and the bottom of the left and right sides of the bottom scraper are inserted with a discharge pipe, and the bottom end of the discharge pipe extends to the outside of the base.
[0011] As a further description of the above technical solution:
[0012] The bottom end of the rotating rod extends to the inner cavity of the discharge pipe and is fixedly connected to a spiral propulsion rod.
[0013] As a further description of the above technical solution:
[0014] The water outlet of the circulation pump is connected to the hot water tank through a water pipe, the water inlet of the circulation pump is connected to the top of the inner cavity wall of the chamber through a water pipe, and the bottom of the inner cavity wall of the hot water tank is connected to the bottom of the inner cavity wall of the chamber through a water pipe.
[0015] As a further description of the above technical solution:
[0016] The left and right sides of the inner cavity wall of the hot water tank are fixedly connected with porous partitions, and the porous partitions on both sides are evenly distributed in sequence from top to bottom.
[0017] As a further description of the above technical solution:
[0018] An electronic temperature-controlled heating rod is inserted on the left side of the inner cavity wall of the hot water tank and between the adjacent porous partitions, and the electronic temperature-controlled heating rods are evenly distributed from top to bottom, and the left end of the electronic temperature-controlled heating rod extends to the outside of the hot water tank.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] 1. The SCR catalyst forming uniform stirring equipment uses a stirring motor and a stirring rod on a rotating rod to stir the raw materials. While stirring, the rotating rod drives the horizontal plate to rotate. The horizontal plate drives the side scrapers and the bottom scraper through the mounting plate to scrape the raw materials on the wall and bottom of the mixing barrel to prevent adhesion. The mounting plate then cooperates with the fitting groove, the mounting rod and the spring to ensure close contact between the side scrapers and the barrel wall to enhance the scraping effect. The discharge is convenient for discharging through the discharge pipe and the spiral propulsion rod. The raw materials can be scraped off the raw materials adhering to the inner wall of the mixing barrel while stirring the raw materials, thereby avoiding waste caused by residual raw materials.
[0021] 2. The SCR catalyst molding and uniform mixing equipment heats water to a suitable temperature through a hot water tank with an electronic temperature-controlled heating rod and a porous partition. The water is pumped by a circulating pump to circulate the water in the chamber and the hot water tank, thereby transferring the temperature to the raw materials in the mixing barrel through the chamber, which can heat and keep the raw materials warm, so that the substances in the raw materials can react better. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic structural diagram of an SCR catalyst molding and uniform stirring device proposed in the present invention;
[0023] Figure 2 This is a schematic diagram of the main cross-section of the structure of an SCR catalyst molding and uniform stirring device proposed in the present invention;
[0024] Figure 3 This is a top view schematic diagram of a porous partition structure of an SCR catalyst molding and uniform stirring device proposed in the utility model;
[0025] Figure 4 This is a top-down cross-sectional diagram of a structural mixing barrel of an SCR catalyst molding and uniform stirring device proposed in the present invention;
[0026] Figure 5 This utility model proposes an SCR catalyst molding and uniform stirring device Figure 4 Enlarged structural diagram at point A in the middle.
[0027] In the figure: 100, base; 200, hot water tank; 210, circulation pump; 220, porous partition; 230, electronic temperature control heating rod; 300, mixing barrel; 310, chamber; 320, cover; 321, stirring motor; 322, rotating rod; 323, horizontal plate; 324, mounting plate; 325, side scraper; 330, fitting groove; 331, mounting rod; 332, spring; 340, bottom scraper; 341, discharge pipe; 350, screw propulsion rod. DETAILED DESCRIPTION
[0028] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are 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, 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 present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0031] The utility model provides an SCR catalyst molding uniform stirring device, which can scrape the raw materials attached to the inner wall of the mixing barrel 300 while stirring the raw materials, thereby avoiding the waste of residual raw materials, and can heat and keep the raw materials warm, so that the substances in the raw materials can react better. Figure 1-5 , including a base 100, a hot water tank 200 and a mixing barrel 300;
[0032] Please refer again Figure 1 、 Figure 2 、 Figure 4 and Figure 5The mixing barrel 300 is fixedly connected to the middle of the top of the base 100, and the hot water tank 200 is fixedly connected to the left side of the top of the base 100. A cover 320 is provided on the top of the mixing barrel 300, and the cover 320 is used to install a stirring motor 321. The stirring motor 321 is fixedly connected to the middle of the top of the cover 320 by bolts. The stirring motor 321 is used to drive the rotating rod 322 to rotate. The output shaft of the stirring motor 321 is fixedly connected to the rotating rod 322. The rotating rod 322 is used to cooperate with the stirring rod to stir the raw materials. The bottom end of the rotating rod 322 extends to the inner cavity of the mixing barrel 300, and a horizontal plate 323 is sleeved on the upper side of the outer wall of the rotating rod 322 and located in the inner cavity of the mixing barrel 300. The horizontal plate 323 is used to drive the mounting plate 324 to rotate. The inside of the horizontal plate 323 The left and right sides are provided with mounting plates 324, which are used to install side scrapers 325 and bottom scrapers 340. The outer side walls of the left and right mounting plates 324 are fixedly connected with side scrapers 325 in the inner cavity of the mixing barrel 300. The side scrapers 325 are used to scrape the inner cavity sides of the mixing barrel 300. The cover 320 is fixedly connected to the top of the mixing barrel 300 by bolts. Fitting grooves 330 are opened on the left and right sides of the top of the cross plate 323. The fitting grooves 330 are used to limit the mounting plate 324. The outer side walls of the mounting plate 324 are slidably connected to the inner cavity walls of the fitting grooves 330. The interior of the mounting plate 324 is slidably connected with mounting rods 331. The mounting rods 331 are used to install the mounting plate 324. The two ends of the mounting rods 331 are respectively connected to the The left and right sides of the inner cavity wall of the fitting groove 330 are fixedly connected, and the outer side wall of the mounting rod 331 and the inner side of the left and right mounting plates 324 are sleeved with springs 332. The springs 332 are used to cooperate with the mounting plates 324 to squeeze the side scrapers 325 so that the side scrapers 325 are in close contact with the inner wall of the mixing barrel 300. The outer side walls of the left and right side scrapers 325 are slidably connected to the inner cavity wall of the mixing barrel 300. The bottom of the mounting plate 324 is fixedly connected to the bottom of the mounting plate 324. The bottom scraper 340 is used to scrape the bottom of the mixing barrel 300. The bottom of the bottom scraper 340 is slidably connected to the bottom of the inner cavity wall of the mixing barrel 300. The outer side wall of the rotating rod 322 and the inner cavity of the mixing barrel 300 are evenly provided with stirring rods. The bottom of the inner cavity wall of the mixing barrel 300 The bottom of the mixing barrel 300 is provided with a discharge pipe 341, which is inserted between the scrapers 340 on the left and right sides. The discharge pipe 341 is used for discharging materials. The bottom end of the discharge pipe 341 extends to the outside of the base 100. The bottom end of the rotating rod 322 extends to the inner cavity of the discharge pipe 341 and is fixedly connected to a spiral propulsion rod 350. The spiral propulsion rod 350 is used to cooperate with the rotating rod 322 to facilitate discharging. When in use, the stirring motor 321 is started by an external controller. The output shaft of the stirring motor 321 rotates to drive the rotating rod 322 to rotate. The rotating rod 322 cooperates with the stirring rod to stir the raw materials. When stirring, the rotating rod 322 also drives the horizontal plate 323 to rotate. The rotation of the horizontal plate 323 drives the side scrapers 325 and the bottom scraper 340 through the mounting plate 324 to scrape the raw materials attached to the inner wall of the mixing barrel 300.During scraping, the mounting plate 324 cooperates with the fitting groove 330, the mounting rod 331 and the spring 332 to ensure close contact between the side scraper 325 and the barrel wall, thereby improving the scraping effect. When discharge is required, the valve on the discharge pipe 341 is opened, and the rotating rod 322 rotates to drive the spiral propulsion rod 350 to rotate. The spiral propulsion rod 350 cooperates with the discharge pipe 341 to discharge the raw materials for processing.
[0033] In summary, the raw materials adhering to the inner wall of the mixing barrel 300 can be scraped off while the raw materials are being stirred, thereby avoiding the waste caused by residual raw materials.
[0034] Please refer again Figure 1-4 The mixing barrel 300 has a chamber 310 around its periphery. The chamber 310 is used to heat and keep the raw materials warm. A circulating pump 210 is fixedly connected to the top of the hot water tank 200. The circulating pump 210 is used to circulate the water in the chamber 310 and the hot water tank 200. The water outlet of the circulating pump 210 is connected to the hot water tank 200 through a water pipe. The water inlet of the circulating pump 210 is connected to the top of the inner cavity wall of the chamber 310 through a water pipe. The bottom of the inner cavity wall of the hot water tank 200 is connected to the inner cavity wall of the chamber 310. The bottoms are connected by water pipes, and porous partitions 220 are fixedly connected on the left and right sides of the inner cavity wall of the hot water tank 200. The porous partitions 220 are used to increase the residence time of water in the hot water tank 200 during circulation so that the electronic temperature control heating rod 230 has sufficient time to heat the water, and the porous partitions 220 on both sides are evenly distributed from top to bottom. The electronic temperature control heating rod 230 is inserted between the adjacent porous partitions 220 on the left side of the inner cavity wall of the hot water tank 200. The electronic temperature control heating rod 230 is used to heat water. The water temperature is monitored at all times. When the water temperature is lower than the set temperature, the control chip will increase the heating power to make the water temperature rise rapidly. When the water temperature reaches or approaches the set temperature, the heating power will be reduced or even the heating will be stopped, thereby accurately controlling the water temperature. This is a prior art and will not be described in detail herein. The electronic temperature control heating rods 230 are evenly distributed from top to bottom. The left end of the electronic temperature control heating rods 230 extends to the outside of the hot water tank 200. The electronic temperature control heating rods 230 are started by an external controller to heat the hot water tank 200 and The water in the chamber 310 is heated to a specified temperature. When raw materials are added to the mixing barrel 300, the circulation pump 210 is activated by the external controller. The circulation pump 210 pumps water to circulate between the chamber 310 and the water in the hot water tank 200 to heat and maintain the raw materials. During the water circulation, the porous partition 220 blocks the water flow to a certain extent, thereby increasing the water's residence time in the hot water tank 200. This allows the electronic temperature-controlled heating rod 230 sufficient time to heat the water, thereby ensuring a constant temperature.
[0035] In summary, the raw materials can be heated and kept warm, so that the substances in the raw materials can react better.
[0036] In specific use, before use, those skilled in the art start the electronic temperature-controlled heating rod 230 through an external controller to heat the water in the hot water tank 200 and the chamber 310 to a specified temperature, add the raw materials into the mixing barrel 300, and start the circulation pump 210 through the external controller. The circulation pump 210 pumps water to form a circulation between the chamber 310 and the water in the hot water tank 200 to heat and keep the raw materials warm. When the water circulates, the porous partition 220 blocks the water flow to a certain extent, thereby increasing the residence time of the water in the hot water tank 200 so that the electronic temperature-controlled heating rod 230 has sufficient time to heat the water, thereby ensuring constant temperature. At the same time, the stirring motor 32 is started through the external controller. 1. The output shaft of the stirring motor 321 rotates to drive the rotating rod 322 to rotate. The rotating rod 322 cooperates with the stirring rod to stir the raw materials. During stirring, the rotating rod 322 also drives the horizontal plate 323 to rotate. The rotation of the horizontal plate 323 drives the side scrapers 325 and the bottom scraper 340 through the mounting plate 324 to scrape the raw materials adhered to the inner wall of the mixing barrel 300. During scraping, the mounting plate 324 cooperates with the fitting groove 330, the mounting rod 331 and the spring 332 to ensure close contact between the side scrapers 325 and the barrel wall to enhance the scraping effect. When discharging is required, the valve on the discharge pipe 341 is opened, and the rotation of the rotating rod 322 drives the spiral propulsion rod 350 to rotate. The spiral propulsion rod 350 cooperates with the discharge pipe 341 to discharge the raw materials for processing.
[0037] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An SCR catalyst molding and uniform stirring device, characterized by: The invention comprises a base (100), a hot water tank (200) and a stirring barrel (300), wherein the stirring barrel (300) is fixedly connected to the middle of the top of the base (100), the hot water tank (200) is fixedly connected to the left side of the top of the base (100), the top of the stirring barrel (300) is provided with a cover (320), the middle of the top of the cover (320) is fixedly connected to a stirring motor (321) by bolts, and the output of the stirring motor (321) is connected to the stirring motor (321). The shaft is fixedly connected to a rotating rod (322), the bottom end of the rotating rod (322) extends to the inner cavity of the mixing barrel (300), a transverse plate (323) is sleeved on the upper side of the outer wall of the rotating rod (322) and located in the inner cavity of the mixing barrel (300), and mounting plates (324) are provided on the left and right sides of the interior of the transverse plate (323), and side scrapers (325) are fixedly connected to the outer walls of the mounting plates (324) on the left and right sides and located in the inner cavity of the mixing barrel (300); A chamber (310) is formed around the interior of the mixing barrel (300), and a circulation pump (210) is fixedly connected to the top of the hot water tank (200).
2. The SCR catalyst forming and uniform stirring device according to claim 1, characterized in that: The cover (320) is fixedly connected to the top of the mixing barrel (300) by bolts, and fitting grooves (330) are provided on the left and right sides of the top of the horizontal plate (323). The outer wall of the mounting plate (324) is slidably connected to the inner wall of the fitting groove (330), and the interior of the mounting plate (324) is slidably connected to a mounting rod (331), and the two ends of the mounting rod (331) are respectively fixedly connected to the left and right sides of the inner wall of the fitting groove (330), and the outer wall of the mounting rod (331) and the inner side of the mounting plate (324) on the left and right sides are sleeved with springs (332), and the outer walls of the side scrapers (325) on the left and right sides are slidably connected to the inner wall of the mixing barrel (300).
3. The SCR catalyst forming and uniform stirring device according to claim 1, characterized in that: The bottom of the mounting plate (324) is fixedly connected to a bottom scraper (340), and the bottom of the bottom scraper (340) is slidably connected to the bottom of the inner cavity wall of the mixing barrel (300). The outer wall of the rotating rod (322) and the inner cavity of the mixing barrel (300) are evenly provided with stirring rods. The bottom of the inner cavity wall of the mixing barrel (300) and the bottom of the bottom scraper (340) on the left and right sides are connected to a discharge pipe (341), and the bottom end of the discharge pipe (341) extends to the outside of the base (100).
4. The SCR catalyst forming and uniform stirring device according to claim 3, characterized in that: The bottom end of the rotating rod (322) extends to the inner cavity of the discharge pipe (341) and is fixedly connected to a spiral propulsion rod (350).
5. The SCR catalyst forming and uniform stirring device according to claim 1, characterized in that: The water outlet of the circulation pump (210) is connected to the hot water tank (200) via a water pipe, the water inlet of the circulation pump (210) is connected to the top of the inner cavity wall of the chamber (310) via a water pipe, and the bottom of the inner cavity wall of the hot water tank (200) is connected to the bottom of the inner cavity wall of the chamber (310) via a water pipe.
6. The SCR catalyst forming and uniform stirring device according to claim 1, characterized in that: The left and right sides of the inner cavity wall of the hot water tank (200) are fixedly connected with porous partitions (220), and the porous partitions (220) on both sides are evenly distributed in sequence from top to bottom.
7. The SCR catalyst forming and uniform stirring device according to claim 6, characterized in that: An electronic temperature-controlled heating rod (230) is inserted on the left side of the inner cavity wall of the hot water tank (200) and located between adjacent porous partitions (220), and the electronic temperature-controlled heating rods (230) are evenly distributed from top to bottom, and the left end of the electronic temperature-controlled heating rod (230) extends to the outside of the hot water tank (200).