Electroplating sludge low-temperature drying equipment

Abstract

The utility model relates to the technical field of sludge treatment, and discloses electroplating sludge low-temperature drying equipment which comprises a low-temperature drying box, an operation panel is arranged on the front face of the low-temperature drying box, a supporting frame is fixedly installed at the top of the low-temperature drying box, and a pretreatment mechanism is arranged at the top of the supporting frame. A low-temperature drying mechanism is arranged in the low-temperature drying box, a motor A drives a conveying screw rod to rotate, a gap of the conveying screw rod becomes smaller and smaller from left to right, water in sludge is squeezed out, the water content of the sludge is reduced in advance, a smashing roller A and a smashing roller B smash the sludge, and the situation that the later drying effect is affected by caked sludge is avoided; an electric heating plate performs low-temperature drying on the sludge at the top of the conveying belt A, a fan accelerates the air velocity, a cross-shaped turnover plate rotates to turn over the sludge and dry the sludge again, an air pump drives a suction port to absorb exhausted hot air, then the hot air is exhausted into the low-temperature drying box to be recycled, and heat loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to low-temperature drying equipment for electroplating sludge. Background Art

[0002] Electroplating sludge refers to the precipitate produced during the treatment of electroplating wastewater, which is mainly composed of heavy metal hydroxides such as copper and chromium. It has a complex composition. During the separation and treatment of electroplating sludge, the common high-temperature drying method will volatilize at high temperatures and cause secondary pollution. Therefore, a low-temperature drying equipment for electroplating sludge is needed.

[0003] According to the description of an energy-saving low-temperature sludge drying equipment disclosed in the patent website (authorization announcement number: CN 205856296U), "The utility model is an energy-saving low-temperature sludge drying equipment, which includes a dryer body, characterized in that: the upper left part of the dryer body is provided with a feed port, the lower right part of the dryer body is provided with a discharge port, the interior of the dryer body is provided with a horizontal partition, and there are two horizontal partitions. The horizontal partition divides the interior of the dryer body into an upper part, a middle part and a lower part. The upper part, the middle part and the lower part of the dryer body are all provided with a conveyor belt and an electric heating plate, and the upper side of the conveying tail end of the conveyor belt is provided with a scraper plate. One end of the horizontal partition is provided with a material guide pipe passing through the horizontal partition, and the upper, the middle and the lower sides of the dryer body are connected to a circulating air duct, and the pipeline of the circulating air duct is provided with a dust filter, an exhaust fan and a dryer; the utility model realizes uniform drying of sludge under low temperature conditions, and has the advantages of high efficiency, energy saving and environmental protection, and high thermal energy utilization rate."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the utility model connects three conveyor belts through a guide pipe to convey the sludge, and the electric heating plate performs micro-heating. Under relatively low temperature conditions, the circulating air duct is used to accelerate the surface wind speed, maintain a slow conveying speed of the conveyor belt, and thoroughly dry the sludge. However, in actual use, the sludge often contains a large amount of sewage, which will have a greater impact during low-temperature drying, resulting in a slower drying rate. Secondly, when the sludge is piled up in large quantities, it will clump, which will also affect the drying efficiency and drying effect. Therefore, it is necessary to improve a low-temperature drying equipment for electroplating sludge to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a low-temperature drying device for electroplating sludge to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature drying device for electroplating sludge, comprising a low-temperature drying box, an operation panel is arranged on the front of the low-temperature drying box, a support frame is fixedly installed on the top of the low-temperature drying box, a pretreatment mechanism is arranged on the top of the support frame, a low-temperature drying mechanism is arranged inside the low-temperature drying box, an observation window is arranged on the front of the low-temperature drying box, and a discharge port is opened on the right side of the low-temperature drying box.

[0008] The pretreatment mechanism comprises a water control component and a crushing component. The water control component is arranged on the top of the support frame, and the crushing component is arranged on the top of the low-temperature drying box.

[0009] Preferably, the water control assembly includes a water control tank, which is fixedly installed on the top of the support frame, a feed pipe is fixedly installed on the right side of the water control tank, a feeding pipe is fixedly installed on the top of the water control tank, a motor A is fixedly installed on the left side of the water control tank, a conveying screw is fixedly installed on the output end of the motor A, a through hole is opened inside the water control tank, a water collecting tank is arranged inside the support frame, a drain pipe is fixedly installed on the front of the water collecting tank, and the squeezed water is discharged through the drain pipe.

[0010] Preferably, a through groove A is provided at the bottom of the discharge pipe, and the conveying screw is arranged inside the water control tank, and the gap of the conveying screw becomes smaller from left to right, so that the electroplating sludge is squeezed and the water in the sludge is squeezed out.

[0011] Preferably, the crushing assembly includes a crushing box, which is fixedly installed on the top of the low-temperature drying box, and a protective shell is fixedly installed on the top of the crushing box, a protrusion is fixedly installed on the top of the crushing box, a motor B is fixedly installed on the right side of the protrusion, a gear is fixedly installed on the output end of the motor B, a gear ring A is meshed on the outside of the gear, a crushing roller A is fixedly installed on the bottom of the gear ring A, the gear is meshed on the outside of the gear, a crushing roller B is fixedly installed on the bottom of the gear ring B, and a scraper is fixedly installed on the outside of the crushing roller A to scrape the inner wall of the crushing box to prevent sludge from adhering to the inside of the crushing box.

[0012] Preferably, the scraper is rotatably installed on the outside of the crushing roller B, the scraper contacts the inner wall of the crushing box, a through groove B is provided at the bottom of the crushing box, the crushing roller B is rotatably installed inside the crushing roller A, the crushing roller A and the crushing roller B rotate in opposite directions to break up the sludge and prevent the agglomerated sludge from affecting the subsequent drying effect.

[0013] Preferably, the low-temperature drying mechanism includes an electric heating plate, which is arranged inside the low-temperature drying box, a conveyor belt A is arranged inside the low-temperature drying box, a conveyor belt B is arranged inside the low-temperature drying box, two arc-shaped baffles are fixedly installed inside the low-temperature drying box, a fan is arranged inside the low-temperature drying box, an air pump is fixedly installed on the left side of the low-temperature drying box, a return pipe is fixedly installed on the left side of the air pump, a suction port is fixedly installed on the end of the return pipe away from the air pump, a guide plate is fixedly installed inside the low-temperature drying box, a motor C is fixedly installed on the back of the low-temperature drying box, and a cross flip plate is fixedly installed on the output end of the motor C, which flips the sludge transported by the conveyor belt A and drops it to the top of the conveyor belt B for re-drying, thereby achieving a better drying effect.

[0014] Preferably, the suction port is fixedly installed on the right side of the low-temperature drying box, and an exhaust port is opened on the right side of the low-temperature drying box, and the gas is discharged through the exhaust port.

[0015] Compared with the prior art, the utility model provides a low-temperature drying device for electroplating sludge, which has the following beneficial effects:

[0016] 1. In the electroplating sludge low-temperature drying equipment, motor A drives the conveying screw to rotate, and the gap of the conveying screw becomes smaller and smaller from left to right, so that the electroplating sludge is squeezed and the water in the sludge is squeezed out. The water enters the water collecting tank through the through hole and is finally discharged through the drain pipe to squeeze out the sewage, thereby reducing the water content of the sludge in advance and reducing the difficulty of drying. The squeezed sludge enters the crushing box, and the motor B is started to drive the gear to rotate, so that the gear ring A and the gear ring B rotate, and the crushing roller A and the crushing roller B rotate in the opposite direction to break the sludge and prevent the agglomerated sludge from affecting the later drying effect. The scraper scrapes the inner wall of the crushing box to prevent the sludge from adhering to the inside of the crushing box.

[0017] 2. The electroplating sludge low-temperature drying equipment, the sludge is broken into pieces and enters the low-temperature drying box, and falls to the top of conveyor belt A. The electric heating plate performs low-temperature drying on the sludge on the top of conveyor belt A. The fan drives the outside air into the low-temperature drying box to speed up the air flow rate and dry faster. The motor C drives the cross flip plate to rotate, flips the sludge conveyed by conveyor belt A and drops it to the top of conveyor belt B for further drying, which has a better drying effect. The gas is discharged through the exhaust port, and the air pump drives the suction port to absorb the discharged hot air, and then discharges it into the low-temperature drying box for recycling to reduce heat loss. The dried sludge is discharged through the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional decomposition structure of the pretreatment mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the pulverizing component of the utility model;

[0023] Figure 5 This is a schematic diagram of the low-temperature drying mechanism structure of the utility model.

[0024] In the figure: 1, low temperature drying box; 2, operation panel; 3, support frame; 4, pretreatment mechanism; 41, water control component; 411, water control box; 412, feed pipe; 413, feed pipe; 414, motor A; 415, conveying screw; 416, through hole; 417, water collecting box; 418, drain pipe; 42, crushing component; 421, crushing box; 422, protective shell; 423, bump; 424, motor B; 425, Gear; 426, gear ring A; 427, crushing roller A; 428, gear ring B; 429, crushing roller B; 4210, scraper; 5, low-temperature drying mechanism; 51, electric heating plate; 52, conveyor belt A; 53, conveyor belt B; 54, arc baffle; 55, fan; 56, air pump; 57, return pipe; 58, suction port; 59, guide plate; 510, motor C; 511, cross flip plate; 6, observation window; 7, discharge port. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 or an electrical connection; 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 present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a low-temperature drying device for electroplating sludge, comprising a low-temperature drying box 1, an operation panel 2 is arranged on the front of the low-temperature drying box 1, a support frame 3 is fixedly installed on the top of the low-temperature drying box 1, a pretreatment mechanism 4 is arranged on the top of the support frame 3, a low-temperature drying mechanism 5 is arranged inside the low-temperature drying box 1, an observation window 6 is arranged on the front of the low-temperature drying box 1, and a discharge port 7 is opened on the right side of the low-temperature drying box 1.

[0029] The pretreatment mechanism 4 includes a water control component 41 and a crushing component 42 . The water control component 41 is arranged on the top of the support frame 3 , and the crushing component 42 is arranged on the top of the low-temperature drying box 1 .

[0030] Furthermore, the water control component 41 includes a water control tank 411, which is fixedly installed on the top of the support frame 3, a feed pipe 412 is fixedly installed on the right side of the water control tank 411, a feeding pipe 413 is fixedly installed on the top of the water control tank 411, a motor A414 is fixedly installed on the left side of the water control tank 411, a conveying screw 415 is fixedly installed on the output end of the motor A414, a through hole 416 is opened inside the water control tank 411, a water collecting tank 417 is arranged inside the support frame 3, a drain pipe 418 is fixedly installed on the front of the water collecting tank 417, and the squeezed water is discharged through the drain pipe 418.

[0031] Furthermore, a through groove A is provided at the bottom of the discharge pipe 412, and a conveying screw 415 is arranged inside the water control tank 411, and the gap of the conveying screw 415 becomes smaller and smaller from left to right, so that the electroplating sludge is squeezed and the water in the sludge is squeezed out.

[0032] Furthermore, the crushing assembly 42 includes a crushing box 421, which is fixedly installed on the top of the low-temperature drying box 1. A protective shell 422 is fixedly installed on the top of the crushing box 421. A protrusion 423 is fixedly installed on the top of the crushing box 421. A motor B424 is fixedly installed on the right side of the protrusion 423. A gear 425 is fixedly installed on the output end of the motor B424. A gear ring A426 is meshed on the outside of the gear 425. A crushing roller A427 is fixedly installed on the bottom of the gear ring A426. A gear ring B428 is meshed on the outside of the gear 425. A crushing roller B429 is fixedly installed on the bottom of the gear ring B428. A scraper 4210 is fixedly installed on the outside of the crushing roller A427 to scrape the inner wall of the crushing box 421 to prevent sludge from adhering to the inside of the crushing box 421.

[0033] Furthermore, the scraper 4210 is rotatably installed on the outside of the crushing roller B429, the scraper 4210 contacts the inner wall of the crushing box 421, a through groove B is provided at the bottom of the crushing box 421, and the crushing roller B429 is rotatably installed inside the crushing roller A427. The crushing roller A427 and the crushing roller B429 rotate in opposite directions to break up the sludge and prevent the agglomerated sludge from affecting the subsequent drying effect.

[0034] Embodiment two:

[0035] See also Figure 5 , and combined with Example 1, it is further obtained that the low-temperature drying mechanism 5 includes an electric heating plate 51, which is arranged inside the low-temperature drying box 1, a conveyor belt A52 is arranged inside the low-temperature drying box 1, a conveyor belt B53 is arranged inside the low-temperature drying box 1, two arc-shaped baffles 54 are fixedly installed inside the low-temperature drying box 1, a fan 55 is arranged inside the low-temperature drying box 1, an air pump 56 is fixedly installed on the left side of the low-temperature drying box 1, a return pipe 57 is fixedly installed on the left side of the air pump 56, a suction port 58 is fixedly installed on the end of the return pipe 57 away from the air pump 56, a guide plate 59 is fixedly installed inside the low-temperature drying box 1, a motor C510 is fixedly installed on the back of the low-temperature drying box 1, and a cross flip plate 511 is fixedly installed on the output end of the motor C510, which flips the sludge conveyed by the conveyor belt A52 and drops it to the top of the conveyor belt B53 for re-drying, and the drying effect is better.

[0036] Furthermore, the suction port 58 is fixedly installed on the right side of the low-temperature drying box 1, and an exhaust port is opened on the right side of the low-temperature drying box 1, and the gas is discharged through the exhaust port.

[0037] In actual operation, when this device is used, the electroplating sludge enters the water control tank 411 through the feeding pipe 413, and the motor A414 is started to drive the conveying screw 415 to rotate. The gap of the conveying screw 415 becomes smaller and smaller from left to right, so that the electroplating sludge is squeezed and the water in the sludge is squeezed out. The water enters the water collecting tank 417 through the through hole 416 and is finally discharged through the drain pipe 418 to squeeze out the sewage, reduce the water content of the sludge in advance, and reduce the difficulty of drying. The squeezed sludge enters the crushing box 421, and the motor B424 is started to drive the gear 425 to rotate, so that the gear ring A426 and the gear ring B428 rotate, and drive the crushing roller A427 and the crushing roller B429 to rotate in the opposite direction to break the sludge and prevent the agglomerated sludge from affecting the later stage. Drying effect, the scraper 4210 scrapes the inner wall of the crushing box 421 to prevent the sludge from adhering to the inside of the crushing box 421. After the sludge is broken, it enters the low-temperature drying box 1 and falls to the top of the conveyor belt A52. The electric heating plate 51 performs low-temperature drying on the sludge on the top of the conveyor belt A52. The fan 55 drives the external air into the low-temperature drying box 1 to speed up the air flow rate and dry faster. The motor C510 drives the cross flip plate 511 to rotate, flips the sludge transported by the conveyor belt A52 and drops it to the top of the conveyor belt B53 for further drying, which has a better drying effect. The gas is discharged through the exhaust port, and the air pump 56 drives the suction port 58 to absorb the discharged hot air, and then discharges it into the low-temperature drying box 1 for recycling to reduce heat loss. The dried sludge is discharged through the discharge port 7.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A low-temperature drying device for electroplating sludge, comprising a low-temperature drying box (1), characterized in that: An operation panel (2) is arranged on the front of the low-temperature drying box (1), a support frame (3) is fixedly installed on the top of the low-temperature drying box (1), a pre-treatment mechanism (4) is arranged on the top of the support frame (3), a low-temperature drying mechanism (5) is arranged inside the low-temperature drying box (1), an observation window (6) is arranged on the front of the low-temperature drying box (1), and a discharge port (7) is opened on the right side of the low-temperature drying box (1); The pretreatment mechanism (4) comprises a water control component (41) and a crushing component (42); the water control component (41) is arranged on the top of the support frame (3); and the crushing component (42) is arranged on the top of the low-temperature drying box (1).

2. The electroplating sludge low-temperature drying equipment according to claim 1, characterized in that: The water control assembly (41) comprises a water control box (411), the water control box (411) is fixedly mounted on the top of the support frame (3), a feed pipe (412) is fixedly mounted on the right side of the water control box (411), a feed pipe (413) is fixedly mounted on the top of the water control box (411), a motor A (414) is fixedly mounted on the left side of the water control box (411), a conveying screw (415) is fixedly mounted on the output end of the motor A (414), a through hole (416) is provided inside the water control box (411), a water collecting box (417) is arranged inside the support frame (3), and a drainage pipe (418) is fixedly mounted on the front of the water collecting box (417).

3. The electroplating sludge low temperature drying equipment according to claim 2 is characterized by: A through groove A is provided at the bottom of the feed pipe (412), and the conveying screw (415) is arranged inside the water control box (411), and the clearance of the conveying screw (415) becomes smaller from left to right.

4. The electroplating sludge low-temperature drying equipment according to claim 1, characterized in that: The pulverizing assembly (42) comprises a pulverizing box (421), wherein the pulverizing box (421) is fixedly mounted on the top of the low-temperature drying box (1), a protective shell (422) is fixedly mounted on the top of the pulverizing box (421), a protrusion (423) is fixedly mounted on the top of the pulverizing box (421), a motor B (424) is fixedly mounted on the right side of the protrusion (423), a gear (425) is fixedly mounted on the output end of the motor B (424), a gear ring A (426) is meshed on the outside of the gear (425), a pulverizing roller A (427) is fixedly mounted on the bottom of the gear ring A (426), a gear ring B (428) is meshed on the outside of the gear (425), a pulverizing roller B (429) is fixedly mounted on the bottom of the gear ring B (428), and a scraper (4210) is fixedly mounted on the outside of the pulverizing roller A (427).

5. The electroplating sludge low-temperature drying equipment according to claim 4 is characterized in that: The scraper (4210) is rotatably mounted on the outside of the crushing roller B (429), and the scraper (4210) contacts the inner wall of the crushing box (421). A through groove B is provided at the bottom of the crushing box (421), and the crushing roller B (429) is rotatably mounted inside the crushing roller A (427).

6. The electroplating sludge low temperature drying equipment according to claim 1, characterized in that: The low-temperature drying mechanism (5) comprises an electric heating plate (51), the electric heating plate (51) is arranged inside the low-temperature drying box (1), a conveyor belt A (52) is arranged inside the low-temperature drying box (1), a conveyor belt B (53) is arranged inside the low-temperature drying box (1), two arc-shaped baffles (54) are fixedly installed inside the low-temperature drying box (1), a fan (55) is arranged inside the low-temperature drying box (1), an air pump (56) is fixedly installed on the left side of the low-temperature drying box (1), a return pipe (57) is fixedly installed on the left side of the air pump (56), a suction port (58) is fixedly installed at one end of the return pipe (57) away from the air pump (56), a guide plate (59) is fixedly installed inside the low-temperature drying box (1), a motor C (510) is fixedly installed on the back of the low-temperature drying box (1), and a cross flip plate (511) is fixedly installed at the output end of the motor C (510).

7. The electroplating sludge low-temperature drying equipment according to claim 6, characterized in that: The suction port (58) is fixedly mounted on the right side of the low-temperature drying box (1), and an exhaust port is provided on the right side of the low-temperature drying box (1).

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