Water treatment agent spray drying device

Abstract

The utility model relates to the technical field of water treatment agent drying, in particular to a water treatment agent spray drying device which comprises a bottom plate, a drying cylinder is arranged above the bottom plate, a feeding hopper communicated with an inner cavity of the drying cylinder is fixed on the top face of the drying cylinder, and a discharging pipe communicated with the inner cavity of the drying cylinder is fixed at the bottom end of the drying cylinder. The bottom plate, the feeding hopper, the discharging pipe, the two manual valves and the heating rings are arranged, so that a water treatment agent added into the drying cylinder can be dried, a proper amount of clear water is added into the drying cylinder, and a liquid supply pipe of an external liquid supply device is tightly connected with a liquid inlet pipe in a sleeving mode; through the design of the treatment barrel, a plurality of supporting legs, a gas inlet pipe, a ventilation pipe, a gas outlet pipe, a fan and a spraying mechanism, dust in waste gas generated in the drying process can be adsorbed, and meanwhile acid gas in the waste gas can be treated; therefore, the waste gas is prevented from being exhausted into the air to pollute the environment and harm the health of workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment agent drying technical field, concretely is a water treatment agent spray drying device. BACKGROUND

[0002] In modern industrial production and life, the application of water treatment agent is more and more extensive, and the water treatment agent needs to be dried in the production process, and a spray drying device needs to be used in the drying process.

[0003] In the prior art, the traditional water treatment agent spray drying device will produce a large amount of waste gas in the running process, and these waste gases often contain incompletely treated acidic substances such as sulfuric acid and hydrochloric acid. If these waste gases are directly discharged, not only will it cause serious pollution to the environment, but also will harm human health. At present, the main methods for treating acidic substances in waste gas are as follows: one is to use adsorption method to adsorb acidic substances by using adsorbent, but the adsorption capacity of adsorbent is limited, and it needs to be replaced frequently, which is relatively complicated to operate. The second is to use catalytic oxidation method to oxidize acidic substances into harmless substances under the action of catalyst, but the cost of catalyst is high, and the reaction conditions are relatively strict. In view of this, we propose a water treatment agent spray drying device. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a water treatment agent spray drying device to solve the problems in the prior art that the traditional water treatment agent spray drying device will produce a large amount of waste gas in the running process, and these waste gases often contain incompletely treated acidic substances such as sulfuric acid and hydrochloric acid. If these waste gases are directly discharged, not only will it cause serious pollution to the environment, but also will harm human health. At present, the main methods for treating acidic substances in waste gas are as follows: one is to use adsorption method to adsorb acidic substances by using adsorbent, but the adsorption capacity of adsorbent is limited, and it needs to be replaced frequently, which is relatively complicated to operate. The second is to use catalytic oxidation method to oxidize acidic substances into harmless substances under the action of catalyst, but the cost of catalyst is high, and the reaction conditions are relatively strict.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of water treatment agent spray drying device, including bottom plate, drying cylinder is equipped above the bottom plate, fixed with its inner cavity is communicated with feeding hopper on the top surface of the drying cylinder, the bottom end of the drying cylinder is fixed with its inner cavity is communicated with discharge pipe, manual valve is mounted on the outer wall of the feeding hopper pipe body and discharge pipe, the top surface of the drying cylinder is rotatably connected with the exhaust pipe that its inner cavity is communicated, a plurality of heating rings are installed on the inner wall of the drying cylinder, the bottom plate is equipped with the processing cylinder by being fixed with it and being located at the right side of drying cylinder by a plurality of support legs, the side wall of the processing cylinder is fixed with the air inlet pipe that its inner cavity is communicated near the bottom end, the side wall of the processing cylinder is fixed with the air outlet pipe that its inner cavity is communicated near the top end, fan is installed on the inner wall of the air outlet pipe, and the exhaust pipe is communicated with the air inlet pipe by breather pipe, still include:

[0007] Spraying mechanism is arranged on the top surface of the processing cylinder, for spraying treatment to the gas entering the inside of the processing cylinder, the spraying mechanism includes liquid passage box fixed on the top surface of the processing cylinder by a plurality of fixed rods, liquid inlet pipe fixed on the right side surface of the liquid passage box and communicated with its inner cavity, rotatingly connected with the inner cavity of the liquid passage box and communicated with the rotating pipe, driving gear and driven gear between the liquid passage box and the processing cylinder for driving the rotating pipe to rotate, spraying motor is installed on the top surface of the processing cylinder and is used to drive the driving gear to rotate, the rotating pipe penetrates the top surface of the processing cylinder and extends to the inside of the processing cylinder near the middle position, the bottom end of the rotating pipe is fixed with the atomizing nozzle that its inner cavity is communicated, and the driving gear and the driven gear are engaged.

[0008] As a preferred embodiment, the spraying mechanism further includes a rotating shaft coaxially connected with the output shaft of the spraying motor, the driving gear is coaxially fixed on the circumferential outer wall of the rotating shaft, and the driven gear is coaxially fixed on the circumferential outer wall of the rotating pipe.

[0009] As a preferred embodiment, the circumferential outer wall of the drying cylinder is coaxially fixed with a fixed ring, the bottom end of the fixed ring is fixed with a plurality of guide rods slidingly connected with the bottom plate, the top surface of the bottom plate is provided with a driving mechanism near the left end, the driving mechanism includes an L-shaped stand plate fixed on the top surface of the bottom plate near the left end, a rotating roller rotatably connected with the horizontal plate end of the stand plate, a gear ring coaxially fixed on the circumferential outer wall of the drying cylinder, a driving gear coaxially fixed on the circumferential outer wall of the rotating roller and engaged with the gear ring, and a driving motor installed on the top surface of the bottom plate with the output shaft coaxially connected with the rotating roller.

[0010] As a preferred embodiment, the bottom end of the processing cylinder is recessed towards the middle in all directions, and the recess degree is 15-28°, the bottom end of the processing cylinder is fixed with a liquid discharge pipe communicated with its inner cavity, and the outer wall of the liquid discharge pipe is installed with a solenoid valve.

[0011] As a preferred implementation form, the top surface of the bottom plate is provided with a guide groove in the shape of a ring, the bottom end of the guide rod is fixed with a guide block in sliding connection with the guide groove on the top surface of the bottom plate, the longitudinal section of the guide groove on the top surface of the bottom plate is in the shape of a convex section, and the guide block is in the shape of a convex section matching the guide groove on the top surface of the bottom plate.

[0012] As a preferred implementation form, the bottom end of the bottom plate is fixed with an anti-skid plate matching the shape thereof, and the thickness of the anti-skid plate is 1-3 cm.

[0013] As a preferred implementation form, the driving mechanism further comprises a motor box fixed on the top surface of the bottom plate, the driving motor is located inside the motor box, the rotating roller penetrates through the top surface of the motor box, the spraying mechanism further comprises a protection box fixed on the top surface of the processing cylinder, the spraying motor is located inside the protection box, and the rotating shaft penetrates through the top surface of the protection box.

[0014] As a preferred implementation form, the parts of the exhaust pipe, the feeding funnel and the discharging pipe in contact with the drying cylinder are all provided with sealing rings, the parts of the air pipe in contact with the exhaust pipe and the air inlet pipe are all provided with sealing rings, the parts of the liquid outlet pipe, the air outlet pipe and the rotating pipe in contact with the processing cylinder are all provided with sealing rings, and the parts of the liquid inlet box in contact with the liquid inlet pipe and the rotating pipe are also all provided with sealing rings.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The bottom plate, the drying cylinder, the exhaust pipe, the feeding funnel, the discharging pipe, two manual valves and a plurality of heating rings are arranged, so that the water treatment agent added into the drying cylinder can be dried, the proper amount of clean water is added into the processing cylinder, and the liquid supply pipe of the external liquid supply device is tightly sleeved with the liquid inlet pipe, the processing cylinder, a plurality of supporting legs, the air inlet pipe, the air pipe, the air outlet pipe, the fan and the spraying mechanism are arranged, so that the dust in the waste gas generated in the drying process can be adsorbed, and the acidic gas in the waste gas can be treated, thereby preventing the waste gas from being discharged into the air to pollute the environment and harm the health of the workers.

[0017] 2、The fixing ring, a plurality of guide rods, a plurality of guide blocks and the driving mechanism are arranged, so that the drying cylinder can be driven to rotate, the water treatment agent in the drying cylinder can be heated more uniformly, and the drying effect of the whole device is better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a local structure schematic view of the utility model.

[0020] Figure 3 It is a partial explosion drawing of the utility model;

[0021] Figure 4 It is a schematic diagram of internal structure of the drying cylinder in the utility model;

[0022] Figure 5 It is a schematic diagram of internal structure of the processing cylinder in the utility model;

[0023] Figure 6 It is a schematic diagram of overall structure of the driving mechanism in the utility model;

[0024] Figure 7 It is an explosion drawing of the driving mechanism in the utility model;

[0025] Figure 8 It is a schematic diagram of overall structure of the spraying mechanism in the utility model;

[0026] Figure 9 It is a partial explosion drawing of the spraying mechanism in the utility model;

[0027] Figure 10 It is a partial explosion drawing of the spraying mechanism in the utility model;

[0028] The meanings of various reference numerals in the drawing are as follows:

[0029] 1, bottom plate; 2, drying cylinder; 3, exhaust pipe; 4, processing cylinder; 5, supporting leg; 6, air inlet pipe; 7, air pipe; 8, driving mechanism; 81, vertical plate; 82, rotating roller; 83, driving motor; 84, driving gear; 85, gear ring; 86, motor box; 9, spraying mechanism; 91, liquid passing box; 92, fixing rod; 93, liquid inlet pipe; 94, rotating pipe; 95, spraying motor; 96, rotating shaft; 97, driving gear; 98, driven gear; 99, atomizing nozzle; 910, protection box; 10, fixing ring; 11, guide rod; 12, guide block; 13, feeding hopper; 14, discharging pipe; 15, hand valve; 16, liquid discharge pipe; 17, electromagnetic valve; 18, heating ring; 19, anti-skid plate; 20, air outlet pipe; 21, fan. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to Figures 1-10The utility model provides a technical scheme: a water treatment agent spray drying device, including bottom plate 1, bottom plate 1 top is equipped with drying cylinder 2, the top surface of drying cylinder 2 is fixed with the feed hopper 13 of communication with its inner chamber, drying cylinder 2 bottom end is fixed with the unloading pipe 14 of communication with its inner chamber, the outer wall of unloading pipe 14 and feed hopper 13 pipe body is all installed with manual valve 15, the top surface of drying cylinder 2 is rotatably connected with the exhaust pipe 3 of communication with its inner chamber, the inner wall of drying cylinder 2 is installed with a plurality of heating rings 18, bottom plate 1 top is equipped with through a plurality of support legs 5 with its fixed and located drying cylinder 2 right side's processing cylinder 4, the side wall of processing cylinder 4 is fixed with the air inlet pipe 6 of communication with its inner chamber near the bottom end, the side wall of processing cylinder 4 is fixed with the air outlet pipe 20 of communication with its inner chamber near the top end, the inner wall of air outlet pipe 20 is installed with fan 21, and exhaust pipe 3 is communicated with air inlet pipe 6 through breather pipe 7, still include:

[0032] Spray mechanism 9, set up on the top surface of processing cylinder 4, is used to carry out spray treatment to the gas that enters processing cylinder 4 inside, and spray mechanism 9 includes the liquid passage box 91 of being fixed on the top surface of processing cylinder 4 through a plurality of fixed rods 92, the liquid inlet pipe 93 of being fixed on the right side surface of liquid passage box 91 and being communicated with its inner chamber, the rotary pipe 94 of being rotatably connected to the bottom end of liquid passage box 91 and being communicated with its inner chamber, the driving gear 97 and the driven gear 98 for driving rotary pipe 94 to rotate between liquid passage box 91 and processing cylinder 4, the spray motor 95 of being installed on the top surface of processing cylinder 4 and being used to drive driving gear 97 to rotate, rotary pipe 94 penetrates the top surface of processing cylinder 4 and extends to the inside of processing cylinder 4 near the middle position, the bottom end of rotary pipe 94 is fixed with the atomizing nozzle 99 of communication with its inner chamber, and driving gear 97 and driven gear 98 are engaged, by setting bottom plate 1, drying cylinder 2, exhaust pipe 3, feed hopper 13, unloading pipe 14, two manual valves 15 and a plurality of heating rings 18, the water treatment agent added to the inside of drying cylinder 2 can be dried, the appropriate amount of clean water is added to the inside of processing cylinder 4, and the liquid supply pipe of external liquid supply device is closely sleeved with liquid inlet pipe 93, by setting processing cylinder 4, a plurality of support legs 5, air inlet pipe 6, breather pipe 7, air outlet pipe 20, fan 21 and spray mechanism 9, the dust in the waste gas generated during the drying process can be adsorbed, and the acidic gas in the waste gas can also be treated, thereby preventing the waste gas from being discharged into the air to pollute the environment and harm the health of workers.

[0033] In the embodiment, spray mechanism 9 further includes a rotating shaft 96 coaxially connected with the output shaft of spray motor 95, driving gear 97 is coaxially fixed on the circumferential outer wall of rotating shaft 96, and driven gear 98 is coaxially fixed on the circumferential outer wall of rotary pipe 94, which can smoothly drive driving gear 97 and driven gear 98 to rotate, and in turn can smoothly drive rotary pipe 94 and atomizing nozzle 99 to rotate.

[0034] In addition, the outer wall of the drying cylinder 2 is coaxially fixed with a fixed ring 10, the bottom end of the fixed ring 10 is fixed with a plurality of guide rods 11 which are slidingly connected with the bottom plate 1, the top surface of the bottom plate 1 is provided with a driving mechanism 8 near the left end, the driving mechanism 8 includes a vertical plate 81 which is fixed on the top surface of the bottom plate 1 near the left end and has an L-shaped structure, a rotating roller 82 which is rotatably connected with the horizontal plate end of the vertical plate 81, a gear ring 85 which is coaxially fixed on the outer wall of the drying cylinder 2, a driving gear 84 which is coaxially fixed on the outer wall of the rotating roller 82 and is engaged with the gear ring 85, and a driving motor 83 which is installed on the top surface of the bottom plate 1 and has an output shaft which is coaxially connected with the rotating roller 82, so that the drying cylinder 2 can be driven to rotate, thereby making the water treatment agent inside the drying cylinder 2 be heated more uniformly, and further making the drying effect of the whole device better.

[0035] Further, the bottom end of the treatment cylinder 4 is recessed towards the middle, and the recessed degree is 15-28°, the bottom end of the treatment cylinder 4 is fixed with a liquid discharge pipe 16 which is connected with the inner cavity of the treatment cylinder 4, and the outer wall of the liquid discharge pipe 16 is installed with an electromagnetic valve 17, and the preferred value is 23°, so that the waste liquid inside the treatment cylinder 4 can be smoothly discharged.

[0036] Specifically, the top surface of the bottom plate 1 is provided with a guide groove in the shape of a ring, the bottom end of the guide rod 11 is fixed with a guide block 12 which is slidingly connected with the guide groove on the top surface of the bottom plate 1, the longitudinal section shape of the guide groove on the top surface of the bottom plate 1 is in the shape of a convex section, and the shape of the guide block 12 is in the shape of a convex section which is matched with the shape of the guide groove on the top surface of the bottom plate 1, so that the movement of the plurality of guide rods 11 can be guided, thereby the movement of the drying cylinder 2 can be guided, and at the same time, the phenomenon that the guide block 12 is separated from the guide groove on the top surface of the bottom plate 1 can be prevented, thereby the drying cylinder 2 can be more stable during the movement.

[0037] It is worth noting that the bottom end of the bottom plate 1 is fixed with an anti-skid plate 19 which is matched with the shape, and the thickness of the anti-skid plate 19 is 1-3cm, and the preferred value is 2cm, so that the friction between the whole device and the ground can be increased, thereby the whole device can be more stable during the working process.

[0038] It is worth mentioning that the driving mechanism 8 further includes a motor box 86 which is fixed on the top surface of the bottom plate 1, the driving motor 83 is located inside the motor box 86, and the rotating roller 82 penetrates through the top surface of the motor box 86, the spraying mechanism 9 further includes a protection box 910 which is fixed on the top surface of the treatment cylinder 4, the spraying motor 95 is located inside the protection box 910, and the rotating shaft 96 penetrates through the top surface of the protection box 910, so that the driving motor 83 and the spraying motor 95 can be protected, thereby the service life of the driving motor 83 and the spraying motor 95 can be prolonged.

[0039] It is worth emphasizing that the exhaust pipe 3, the feed hopper 13 and the discharge pipe 14 are provided with sealing rings at the positions in contact with the drying cylinder 2, the air pipe 7 is provided with sealing rings at the positions in contact with the exhaust pipe 3 and the air inlet pipe 6, the liquid discharge pipe 16, the air outlet pipe 20 and the rotating pipe 94 are provided with sealing rings at the positions in contact with the processing cylinder 4, and the liquid passage box 91 is provided with sealing rings at the positions in contact with the liquid inlet pipe 93 and the rotating pipe 94, so that the sealing performance of the whole device is better, and the phenomenon of liquid leakage or air leakage is prevented.

[0040] Finally, it should be noted that the drive motor 83, the spraying motor 95, the electromagnetic valve 17, the heating ring 18 and other components in the utility model are general standard components or components known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through conventional experimental methods, at the idle place of the device, all the electrical components, power elements, electrical components and the corresponding controllers and power supplies are connected through wires, the specific connection means should be referred to the working principle of the utility model, and the electrical components are connected in the order of working sequence, and the detailed connection means are known in the art.

[0041] In the specific use process of the embodiment, when water treatment agent needs to be dried, first, open the manual valve 15 on the outer wall of the feed hopper 13, then add an appropriate amount of water treatment agent to the inside of the drying cylinder 2 through the feed hopper 13 and close the manual valve 15 on the outer wall of the feed hopper 13, then add an appropriate amount of clean water to the inside of the processing cylinder 4 through the liquid inlet pipe 93, then tightly sleeve the liquid supply pipe of the external calcium hydroxide supply device with the liquid inlet pipe 93, then start the pump body in the external PLC, the spraying motor 95, the drive motor 83, the pump body in the external calcium hydroxide supply device and the fan 21, the output shaft of the drive motor 83 drives the rotating roller 82 connected coaxially with it to rotate, the rotating roller 82 drives the driving gear 84 fixed coaxially with it to rotate, the driving gear 84 drives the gear ring 85 meshing with it to rotate, the gear ring 85 drives the drying cylinder 2 fixed coaxially with it to rotate, the drying cylinder 2 rotates under the guidance of the fixing ring 10, the guide rods 11, the guide blocks 12 and the guide grooves on the top surface of the bottom plate 1, the drying cylinder 2 rotates to drive the water treatment agent inside it to rotate, and the water treatment agent is fully heated during rotation and can be dried;

[0042] The gas generated in the drying process is sucked from the exhaust pipe 3 by the fan 21 into the air pipe 7 and into the inside of the air inlet pipe 6, the gas in the inside of the air inlet pipe 6 is then introduced into the clean water in the inside of the processing cylinder 4, the dust and other impurities in the gas can be adsorbed by the clean water, at the same time, the external pump body delivers the sodium hydroxide solution from the liquid supply pipe thereof into the inside of the liquid inlet pipe 93, the solution in the inside of the liquid inlet pipe 93 is then introduced into the liquid passing box 91 and into the inside of the rotating pipe 94, the solution in the inside of the rotating pipe 94 is then introduced into the atomizing nozzle 99 and sprayed out, at this time, the output shaft of the spraying motor 95 rotates to drive the rotating shaft 96 coaxially connected therewith to rotate, the rotating shaft 96 rotates to drive the driving gear 97 fixed coaxially therewith to rotate, the driving gear 97 rotates to drive the driven gear 98 engaged therewith to rotate, the driven gear 98 rotates to drive the rotating pipe 94 fixed coaxially therewith to rotate, the rotating pipe 94 rotates to drive the atomizing nozzle 99 fixed therewith to rotate, so that the atomizing nozzle 99 can be driven to rotate and spray the calcium hydroxide solution at the same time, the upwardly diffused gas is fully contacted with the calcium hydroxide mist, and then the acidic components in the gas can be neutralized and treated, the treated liquid is discharged from the air outlet pipe 20 to the outside, and then the gas treatment work can be realized.

[0043] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A water treatment agent spray drying apparatus comprising a base plate (1), characterised in that, The bottom plate (1) is provided with a drying cylinder (2), the top surface of the drying cylinder (2) is fixed with a feeding funnel (13) communicated with the inner cavity of the drying cylinder (2), the bottom end of the drying cylinder (2) is fixed with a discharging pipe (14) communicated with the inner cavity of the drying cylinder (2), the outer wall of the pipe body of the feeding funnel (13) and the discharging pipe (14) is respectively provided with a hand valve (15), the top surface of the drying cylinder (2) is rotatably connected with an exhaust pipe (3) communicated with the inner cavity of the drying cylinder (2), the inner wall of the drying cylinder (2) is provided with a plurality of heating rings (18), the bottom plate (1) is provided with a treatment cylinder (4) fixed on the bottom plate (1) through a plurality of supporting legs (5) and located on the right side of the drying cylinder (2), the side wall of the treatment cylinder (4) is fixed with an air inlet pipe (6) communicated with the inner cavity of the treatment cylinder (4) near the bottom end, the side wall of the treatment cylinder (4) is fixed with an air outlet pipe (20) communicated with the inner cavity of the treatment cylinder (4) near the top end, the inner wall of the air outlet pipe (20) is provided with a fan (21), the exhaust pipe (3) is communicated with the air inlet pipe (6) through an air pipe (7), and the treatment cylinder (4) is provided with a spraying mechanism (9) on the top surface of the treatment cylinder (4), which is used for spraying treatment on the gas entering the inside of the treatment cylinder (4), the spraying mechanism (9) comprises a liquid passing box (91) fixed on the top surface of the treatment cylinder (4) through a plurality of fixed rods (92), an liquid inlet pipe (93) fixed on the right side surface of the liquid passing box (91) and communicated with the inner cavity of the liquid passing box (91), a rotating pipe (94) rotatably connected to the bottom end of the liquid passing box (91) and communicated with the inner cavity of the liquid passing box (91), a driving gear (97) and a driven gear (98) located between the liquid passing box (91) and the treatment cylinder (4) and used for driving the rotating pipe (94) to rotate, a spraying motor (95) installed on the top surface of the treatment cylinder (4) and used for driving the driving gear (97) to rotate, the rotating pipe (94) penetrates through the top surface of the treatment cylinder (4) and extends to the inside of the treatment cylinder (4) near the middle position, the bottom end of the rotating pipe (94) is fixed with an atomizing nozzle (99) communicated with the inner cavity of the rotating pipe (94), and the driving gear (97) is engaged with the driven gear (98). The spraying mechanism (9) further comprises a rotating shaft (96) coaxially connected with the output shaft of the spraying motor (95), the driving gear (97) is coaxially fixed on the circumferential outer wall of the rotating shaft (96), and the driven gear (98) is coaxially fixed on the circumferential outer wall of the rotating pipe (94).

2. The water treatment agent spray drying apparatus according to claim 1, characterized by: ​ 3. The water treatment agent spray drying apparatus according to claim 2, wherein: The outer circumferential wall of the drying cylinder (2) is coaxially fixed with a fixed ring (10), the bottom end of the fixed ring (10) is fixed with a plurality of guide rods (11) which are slidingly connected with the bottom plate (1), the top surface of the bottom plate (1) is provided with a driving mechanism (8) near the left end, the driving mechanism (8) comprises an L-shaped vertical plate (81) which is fixed on the top surface of the bottom plate (1) near the left end, a rotating roller (82) which is rotatably connected with the horizontal plate end of the vertical plate (81), a tooth ring (85) which is coaxially fixed on the outer circumferential wall of the drying cylinder (2), a driving gear (84) which is coaxially fixed on the outer circumferential wall of the rotating roller (82) and is engaged with the tooth ring (85), and a driving motor (83) which is installed on the top surface of the bottom plate (1) and whose output shaft is coaxially connected with the rotating roller (82).

4. The water treatment agent spray drying apparatus of claim 1, wherein: The bottom end of the processing cylinder (4) is recessed towards the middle, and the recessed degree is 15-28°, the bottom end of the processing cylinder (4) is fixed with a liquid discharge pipe (16) which is connected with the inner cavity of the processing cylinder (4), and the outer wall of the liquid discharge pipe (16) is installed with an electromagnetic valve (17).

5. The water treatment agent spray drying apparatus of claim 3, wherein: The top surface of the bottom plate (1) is provided with a guide groove in the shape of a ring, the bottom end of the guide rod (11) is fixed with a guide block (12) which is slidingly connected with the guide groove on the top surface of the bottom plate (1), the longitudinal section shape of the guide groove on the top surface of the bottom plate (1) is in the shape of a convex section, and the shape of the guide block (12) is in the shape of a convex section which is matched with the shape of the guide groove on the top surface of the bottom plate (1).

6. The water treatment agent spray drying apparatus of claim 1, wherein: The bottom end of the bottom plate (1) is fixed with an anti-skid plate (19) which is matched with the shape of the bottom plate (1), and the thickness of the anti-skid plate (19) is 1-3cm.

7. The water treatment agent spray drying apparatus of claim 3, wherein: The driving mechanism (8) further comprises a motor box (86) which is fixed on the top surface of the bottom plate (1), the driving motor (83) is located inside the motor box (86), the rotating roller (82) penetrates through the top surface of the motor box (86), the spraying mechanism (9) further comprises a protection box (910) which is fixed on the top surface of the processing cylinder (4), the spraying motor (95) is located inside the protection box (910), and the rotating shaft (96) penetrates through the top surface of the protection box (910).

8. The water treatment agent spray drying apparatus of claim 4, wherein: The parts of the exhaust pipe (3), the feeding funnel (13) and the discharging pipe (14) which are in contact with the drying cylinder (2) are all provided with sealing rings, the parts of the air pipe (7) which are in contact with the exhaust pipe (3) and the air inlet pipe (6) are all provided with sealing rings, the parts of the liquid discharge pipe (16), the air outlet pipe (20) and the rotating pipe (94) which are in contact with the processing cylinder (4) are all provided with sealing rings, and the parts of the liquid passing box (91) which are in contact with the liquid inlet pipe (93) and the rotating pipe (94) are also all provided with sealing rings.

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