Recycling device for SCR waste catalyst

Abstract

The utility model discloses an SCR waste catalyst recovery device in the field of SCR waste catalyst recovery, which comprises a bottom plate, support rods and a reaction box, the support rods are fixedly connected to the edge positions of four corners of the top of the bottom plate, the reaction box is fixedly connected to the top ends of the support rods, a feed pipe is fixedly connected to the front part of the top of the reaction box, and the feed pipe is fixedly connected to the bottom of the bottom plate. According to the recovery device for the SCR waste catalyst, the waste catalyst is damaged, the size is reduced, the reaction area of the waste catalyst and a chemical agent is increased, the reaction rate is increased, meanwhile, a driving bevel gear is driven to rotate through starting of a first motor, the rotating directions of an upper driven bevel gear and a lower driven bevel gear are opposite, and therefore the waste catalyst is recycled. The rotating rod and the hollow pipe rotate in opposite directions, the first stirring rod and the second stirring rod are driven to rotate in opposite directions, reactants are stirred in different directions, a waste catalyst and a chemical agent are fully mixed, full reaction is facilitated, and insufficient reaction is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of SCR waste catalyst recovery, in particular to a kind of recovery device of SCR waste catalyst. BACKGROUND

[0002] It is generally referred to as catalyst applied in power plant SCR denitration system, in the SCR reaction, promote reducing agent selectively and nitrogen oxide in flue gas occur chemical reaction at a certain temperature, SCR catalyst is deactivated after a certain period of use due to physical and chemical reasons, although it can be regenerated to restore activity, but physical strength will gradually decrease, these non-regeneratable and damaged catalysts become waste SCR catalyst, in order to avoid waste, some fee catalysts are recycled and reused.

[0003] The current waste catalyst is usually reacted with chemical reagent when being recycled, but the mixing effect is poor when mixing waste catalyst and chemical reagent, which affects the chemical reaction between chemical reagent and waste catalyst, and reduces the treatment efficiency of waste catalyst, therefore, we provide a kind of recovery device of SCR waste catalyst. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of recovery device of SCR waste catalyst to solve the problem that the mixing effect is poor when mixing waste catalyst and chemical reagent in the above background art, which affects the chemical reaction between chemical reagent and waste catalyst, and reduces the treatment efficiency of waste catalyst.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of recovery device of SCR waste catalyst, including bottom plate, support rod and reaction box, the top four corners of the bottom plate are fixedly connected with support rod, the top of the support rod is fixedly connected with reaction box, the top of the reaction box is fixedly connected with feed pipe, the bottom of the reaction box is fixedly connected with discharge pipe, the top of the reaction box is provided with full reaction mechanism;

[0006] The top of the bottom plate is fixedly connected with fixed plate, the bottom plate is placed with collection box, and is located between the fixed plate of left and right parts, and the fixed plate between left and right parts is provided with filter mechanism.

[0007] Further description of the above technical scheme:

[0008] The sufficient reaction mechanism includes a mounting frame, a rotating rod, a first stirring rod, a hollow pipe, a second stirring rod, a driven bevel gear, a first motor, a driving bevel gear, a feeding box, a crushing roller, a transmission gear and a second motor, the top middle part of the reaction box is fixedly connected with the mounting frame, the top middle part of the mounting frame is rotatably connected with the rotating rod, the outer side wall bottom of the rotating rod is fixedly connected with the first stirring rod, the top middle part of the reaction box is rotatably connected with the hollow pipe, the outer side wall of the hollow pipe is fixedly connected with the second stirring rod, the outer side wall top of the rotating rod and the outer side wall top of the hollow pipe are fixedly connected with the driven bevel gear, the rear side of the mounting frame is fixedly connected with the first motor, the output shaft end of the first motor is fixedly connected with the driving bevel gear, the top rear part of the reaction box is fixedly connected with the feeding box, the inner side wall front and rear part of the feeding box is rotatably connected with the crushing roller, the transmission shaft left end of the crushing roller is fixedly connected with the transmission gear, and the right side top of the feeding box is fixedly connected with the second motor.

[0009] As a further description of the above technical solutions:

[0010] The outer side edge of the driving bevel gear is connected with the driven bevel gear through the tooth, the rotating rod is located in the hollow pipe, the two transmission gears are connected through the tooth, and the outer side of the discharge pipe is provided with an electromagnetic valve.

[0011] As a further description of the above technical solutions:

[0012] The input ends of the first motor and the second motor are electrically connected with the output end of the external power supply, and the output shaft end of the second motor is fixedly connected with the transmission shaft right end of the front crushing roller.

[0013] As a further description of the above technical solutions:

[0014] The filtering mechanism includes a sliding rod, a sliding block, a placing frame, a filtering frame, a connecting seat, a third motor, a rotating disc and a connecting rod, the top of the opposite sides between the left and right fixed plates is fixedly connected with the sliding rod in a symmetrical manner, the outer side wall of the sliding rod is slidably connected with the sliding block, the top of the sliding block is fixedly connected with the placing frame, the inside of the placing frame is placed with the filtering frame, the right middle part of the placing frame is fixedly connected with the connecting seat, the right side of the right fixed plate is fixedly connected with the third motor, the output shaft end of the third motor is fixedly connected with the rotating disc, and the top edge of the rotating disc is rotatably connected with the connecting rod.

[0015] As a further description of the above technical solutions:

[0016] The input end of the third motor is electrically connected with the output end of the external power supply, and the other end of the connecting rod is rotatably connected in the inside of the connecting seat.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The SCR spent catalyst recovery device utilizes a reaction tank and a fully reactive mechanism. The spent catalyst is placed in a feeding box. The rotation of the second motor causes the crushing roller to rotate, breaking down the spent catalyst, reducing its volume, increasing the reaction area with the chemical reagents, and improving the reaction rate. Simultaneously, the start of the first motor drives the active bevel gear to rotate, causing the upper and lower driven bevel gears to rotate in opposite directions. This causes the rotating rod and hollow tube to rotate in opposite directions, driving the first and second stirring rods to rotate in opposite directions, thus stirring the reactants in different directions. This ensures thorough mixing of the spent catalyst and chemical reagents, facilitating a complete reaction and preventing incomplete reactions.

[0019] 2. The SCR waste catalyst recovery device utilizes a fixed plate and a filtration mechanism. By starting a third motor, the turntable rotates, causing the connecting rod to move the connecting seat back and forth. This causes the placement frame to move the slider back and forth outside the sliding rod, oscillating and filtering the mixture falling into the filter frame, thus separating the solid and liquid, accelerating the filtration efficiency, and facilitating subsequent collection and processing of the solids. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an SCR waste catalyst recovery device proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of the reaction chamber of an SCR waste catalyst recovery device proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the rotating rod installation structure of a recycling device for SCR waste catalyst proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting rod installation structure of a recycling device for SCR waste catalyst proposed in this utility model.

[0024] In the diagram: 100, base plate; 200, support rod; 300, reaction box; 310, mounting frame; 320, rotating rod; 321, first stirring rod; 330, hollow tube; 331, second stirring rod; 340, driven bevel gear; 350, first motor; 360, driving bevel gear; 370, feeding box; 380, crushing roller; 381, transmission gear; 382, ​​second motor; 390, feed pipe; 391, discharge pipe; 400, fixing plate; 410, sliding rod; 420, slider; 430, placement frame; 440, filter frame; 450, connecting seat; 460, third motor; 470, turntable; 480, connecting rod; 490, collection box. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the term "a plurality of" means two or more.

[0027] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The present application provides a kind of recovery device of SCR waste catalyst, waste catalyst is broken, reduce volume, increase the reaction area with chemical reagent, improve reaction rate, different direction stirring is carried out to reactant, so that waste catalyst and chemical reagent are fully mixed, facilitate fully reaction, prevent reaction from being insufficient, please refer to Figures 1-4 , including bottom plate 100, support rod 200 and reaction box 300;

[0029] Please refer to Figure 1The top four corner edge positions of the bottom plate 100 are fixedly connected with support rods 200, the top ends of the support rods 200 are fixedly connected with reaction boxes 300, the top front parts of the reaction boxes 300 are fixedly connected with feeding pipes 390, the bottom middle parts of the reaction boxes 300 are fixedly connected with discharge pipes 391, and the top parts of the reaction boxes 300 are provided with sufficient reaction mechanisms;

[0030] Please refer again to Figure 1 The top parts of the bottom plate 100 are fixedly connected with fixed plates 400 in a symmetrical mode, and the bottom plate 100 is placed with a collection box 490 between the fixed plates 400 at left and right parts, and a filtering mechanism is arranged between the fixed plates 400 at left and right parts.

[0031] Please refer again to Figure 2 The sufficient reaction mechanism comprises a mounting frame 310, a rotating rod 320, first stirring rods 321, a hollow pipe 330, second stirring rods 331, a driven bevel gear 340, a first motor 350, a driving bevel gear 360, a feeding box 370, crushing rollers 380, a transmission gear 381 and a second motor 382.

[0032] Please refer again to Figure 2 The top middle part of the reaction box 300 is fixedly connected with the mounting frame 310, the top middle part of the mounting frame 310 is rotatably connected with the rotating rod 320, the outer side walls of the rotating rod 320 are uniformly fixedly connected with the first stirring rods 321, the top middle part of the reaction box 300 is rotatably connected with the hollow pipe 330, the outer side walls of the hollow pipe 330 are uniformly fixedly connected with the second stirring rods 331, and the outer side walls of the top parts of the rotating rod 320 and the hollow pipe 330 are fixedly connected with the driven bevel gear 340.

[0033] Please refer again to Figure 2 The rear side of the mounting frame 310 is fixedly connected with the first motor 350, the output shaft end of the first motor 350 is fixedly connected with the driving bevel gear 360, the top rear part of the reaction box 300 is fixedly connected with the feeding box 370, the inner side walls of the feeding box 370 are rotatably connected with the crushing rollers 380, the transmission shaft left end of the crushing roller 380 is fixedly connected with the transmission gear 381, and the right top part of the feeding box 370 is fixedly connected with the second motor 382.

[0034] In summary, by using the reaction box 300 and the full reaction mechanism, the waste catalyst is put into the feeding box 370, the second motor 382 is rotated, the crushing roller 380 is rotated, the waste catalyst is damaged, the volume is reduced, the reaction area with the chemical agent is increased, the reaction rate is improved, and the first motor 350 is started to drive the driving bevel gear 360 to rotate, the upper and lower driven bevel gears 340 are turned in opposite directions, the rotating rod 320 and the hollow tube 330 are turned in opposite directions, the first stirring rod 321 and the second stirring rod 331 are turned in opposite directions, the reactants are stirred in different directions, the waste catalyst and the chemical agent are fully mixed, and the full reaction is facilitated to prevent insufficient reaction.

[0035] Please refer again to Figure 2 , the outer side of the driving bevel gear 360 is connected with the driven bevel gear 340 through the tooth pattern, the rotating rod 320 is located in the hollow tube 330, the two transmission gears 381 are connected through the tooth pattern, and the outer side of the discharge pipe 391 is provided with an electromagnetic valve.

[0036] Please refer again to Figure 2 , the input ends of the first motor 350 and the second motor 382 are electrically connected with the output end of the external power supply, and the output shaft end of the second motor 382 is fixedly connected with the transmission shaft right end of the front crushing roller 380.

[0037] Please refer again to Figure 4 , the filtering mechanism comprises a sliding rod 410, a sliding block 420, a placing frame 430, a filtering frame 440, a connecting seat 450, a third motor 460, a rotating disc 470 and a connecting rod 480, the top of the opposite sides between the left and right fixed plates 400 is fixedly connected with the sliding rod 410, the outer side wall of the sliding rod 410 is slidably connected with the sliding block 420, the top of the sliding block 420 is fixedly connected with the placing frame 430, the inside of the placing frame 430 is placed with the filtering frame 440, the right side of the placing frame 430 is fixedly connected with the connecting seat 450, the right side of the right fixed plate 400 is fixedly connected with the third motor 460, the output shaft end of the third motor 460 is fixedly connected with the rotating disc 470, and the top edge of the rotating disc 470 is rotatably connected with the connecting rod 480.

[0038] Please refer again to Figure 4 , the input end of the third motor 460 is electrically connected with the output end of the external power supply, and the other end of the connecting rod 480 is rotatably connected in the inside of the connecting seat 450.

[0039] In summary, by the setting of the fixed plate 400 and the filtering mechanism, through the starting of the third motor 460, the rotating disc 470 is driven to rotate, the connecting rod 480 drives the connecting seat 450 to move back and forth left and right, so that the placing frame 430 drives the sliding block 420 to move back and forth left and right outside the sliding rod 410, the mixture falling into the filtering frame 440 is shaken and filtered, solid-liquid separation is realized, the filtering efficiency is accelerated, and the solid is collected subsequently.

[0040] In specific use, the person skilled in the art starts the first motor 350 and the second motor 382, pours the chemical agent into the feeding pipe 390, and then pours the waste catalyst into the feeding box 370. Through the rotation of the second motor 382, the front crushing roller 380 is driven to rotate, the transmission gear 381 is utilized to drive the two crushing rollers 380 to rotate towards each other, the waste catalyst is crushed, and then falls into the inside of the reaction box 300. Through the starting of the first motor 350, the driving bevel gear 360 is driven to rotate, the two driven bevel gears 340 are driven to rotate in opposite directions, the rotating rod 320 and the hollow pipe 330 are driven to rotate in opposite directions, the first stirring rod 321 and the second stirring rod 331 are driven to rotate in opposite directions, the reactant is stirred in different directions, the reaction efficiency is accelerated, and precipitation is avoided. After the reaction is completed, the first motor 350 and the second motor 382 are closed, the third motor 460 is started, the electromagnetic valve is opened, the discharge pipe 391 is opened, the mixture falls into the inside of the filtering frame 440, the rotating disc 470 is driven to rotate through the starting of the third motor 460, the connecting rod 480 drives the connecting seat 450 to move back and forth left and right, so that the placing frame 430 drives the sliding block 420 to move back and forth left and right outside the sliding rod 410, the mixture falling into the filtering frame 440 is shaken and filtered, solid-liquid separation is realized, and then the solid is collected, and the recycling is completed.

[0041] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An apparatus for the recovery of spent SCR catalyst, characterized by: The utility model provides a reaction box, including bottom plate (100), support rod (200) and reaction box (300), the top four corner edge position of bottom plate (100) is fixedly connected with support rod (200), the top of support rod (200) is fixedly connected with reaction box (300), the top of reaction box (300) is fixedly connected with feed pipe (390), the bottom of reaction box (300) is fixedly connected with discharge pipe (391), and the top of reaction box (300) is provided with full reaction mechanism; The top of bottom plate (100) is fixedly connected with fixed plate (400) in symmetry, a collecting box (490) is placed on the top of bottom plate (100) and is located between the fixed plates (400) on the left and right parts, and a filtering mechanism is arranged between the fixed plates (400) on the left and right parts.

2. An apparatus for recovering an SCR spent catalyst according to claim 1, characterized in that: The full reaction mechanism comprises a mounting bracket (310), a rotating rod (320), first stirring rods (321), a hollow pipe (330), second stirring rods (331), a driven bevel gear (340), a first motor (350), a driving bevel gear (360), a feeding box (370), crushing rollers (380), transmission gears (381), and a second motor (382), the top middle part of the reaction box (300) is fixedly connected with the mounting bracket (310), the top middle part of the mounting bracket (310) is rotatably connected with the rotating rod (320), the outer side walls of the bottom of the rotating rod (320) are uniformly fixedly connected with the first stirring rods (321), the top middle part of the reaction box (300) is rotatably connected with the hollow pipe (330), the outer side walls of the hollow pipe (330) are uniformly fixedly connected with the second stirring rods (331), the outer side walls of the top of the rotating rod (320) and the outer side walls of the top of the hollow pipe (330) are fixedly connected with the driven bevel gear (340), the rear side of the mounting bracket (310) is fixedly connected with the first motor (350), the output shaft end of the first motor (350) is fixedly connected with the driving bevel gear (360), the top rear part of the reaction box (300) is fixedly connected with the feeding box (370), the inner side walls of the front and rear parts of the feeding box (370) are rotatably connected with the crushing rollers (380), the transmission shaft left end of the crushing roller (380) is fixedly connected with the transmission gear (381), and the right top of the feeding box (370) is fixedly connected with the second motor (382).

3. An apparatus for the recovery of spent SCR catalyst according to claim 2, characterized in that: The outer side edge part of the driving bevel gear (360) is meshingly connected with the driven bevel gear (340) through teeth, the rotating rod (320) is located inside the hollow pipe (330), the two transmission gears (381) are meshingly connected through teeth, and the outside of the discharge pipe (391) is provided with an electromagnetic valve.

4. The apparatus for recovering an SCR spent catalyst according to claim 2, characterized by: The input ends of the first motor (350) and the second motor (382) are electrically connected with the output end of an external power supply, and the output shaft end of the second motor (382) is fixedly connected with the transmission shaft right end of the front crushing roller (380).

5. The apparatus for recovering an SCR spent catalyst according to claim 1, characterized by: The filtering mechanism comprises a sliding rod (410), a sliding block (420), a placing frame (430), a filtering frame (440), a connecting seat (450), a third motor (460), a rotating disc (470) and a connecting rod (480), the top of the fixed plate (400) is symmetrically and fixedly connected between the opposite sides of the left and right parts, the outer side wall of the sliding rod (410) is slidably connected with the sliding block (420), the top of the sliding block (420) is fixedly connected with the placing frame (430), the inside of the placing frame (430) is placed with the filtering frame (440), the middle of the right side of the placing frame (430) is fixedly connected with the connecting seat (450), the right side of the fixed plate (400) is fixedly connected with the third motor (460), the output shaft end of the third motor (460) is fixedly connected with the rotating disc (470), and the top edge of the rotating disc (470) is rotatably connected with the connecting rod (480).

6. An apparatus for the recovery of spent SCR catalyst according to claim 5, characterized in that: The input end of the third motor (460) is electrically connected with the output end of an external power source, and the other end of the connecting rod (480) is rotatably connected in the inside of the connecting seat (450).

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