A pretreatment device for the production of calcium-zinc stabilizers

Abstract

The present invention relates to the technical field of raw material pretreatment, and particularly relates to a pretreatment device for the production of calcium-zinc stabilizers, including a treatment tank. A sewage collection cylinder and a separation cylinder are coaxially installed at the bottom of the treatment tank, and the diameter of the separation cylinder is larger than that of the sewage collection cylinder; a cleaning assembly, the cleaning assembly includes a water storage table and a support cylinder that are connected to each other. The support cylinder is movably connected to the sewage collection cylinder, and the water storage table is located at the top of the support cylinder. A water inlet pipe is provided at the top of the water storage table, and guide vanes facing the water inlet pipe are provided on the water storage table. A screen is slidably installed on the support cylinder, and a limit ring for restricting the downward movement of the screen is provided on the support cylinder. A cleaning member facing the screen is provided on the support cylinder; and a discharge tray slidably installed on the separation cylinder. Guide posts are provided on the support cylinder, and fixed sleeves cooperating with the guide posts are provided on the discharge tray. In the present invention, the material is washed by a spray head. At the same time, the spray head washing assists the rotation of the water storage table, and the brush will rotate with the support cylinder to cooperate with the material for washing, improving the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of raw material pretreatment, and particularly relates to a pretreatment device for the production of calcium-zinc stabilizers. Background Art

[0002] Calcium-zinc stabilizers are non-toxic stabilizers synthesized by a special compound process with calcium salts, zinc salts, lubricants, antioxidants, etc. as the main components. It can not only replace toxic stabilizers such as lead-cadmium salts and organotin compounds, but also has excellent thermal stability, light stability and transparency.

[0003] Before the production of calcium-zinc stabilizers, pretreatment is required. First, raw materials such as calcium carbonate and zinc oxide are screened to remove impurities and unqualified particles to ensure that the purity and particle size distribution of the raw materials meet the production requirements. Subsequently, the screened raw materials are washed to remove dirt and attachments on the surface, the washed raw materials are dried to remove moisture and volatile substances, and finally the dried raw materials are crushed to make their particle size meet the production requirements. According to the formula ratio, the crushed raw materials are mixed evenly.

[0004] Currently, when performing washing pretreatment before the production of calcium-zinc stabilizers, the raw materials and water are mostly mixed and stirred together. Although the cleaning speed is fast, the cleaning effect is poor. And directly connecting a water pipe to wash the raw materials on the conveying device, but since the raw materials are prone to accumulation during transportation, only the surfaces of most of the raw materials can be washed during rinsing, and the raw materials are not rinsed sufficiently, resulting in insufficient cleaning of the raw materials and affecting the production accuracy of subsequent calcium-zinc stabilizers. Summary of the Invention

[0005] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a pretreatment device for the production of calcium-zinc stabilizers, which can effectively solve the problems of large limitations in raw material cleaning and insufficient removal of dirt in the prior art, resulting in affecting the subsequent production accuracy.

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] The present invention provides a pretreatment device for the production of calcium-zinc stabilizers, including:

[0008] A treatment tank, at the bottom of which a sewage collection cylinder and a separation cylinder are coaxially installed, and the diameter of the separation cylinder is larger than that of the sewage collection cylinder;

[0009] Cleaning component, the cleaning component includes a water storage table and a support cylinder that are interconnected. The support cylinder is movably connected to the sewage collection cylinder, and the water storage table is located at the top of the support cylinder. An inlet pipe is provided at the top of the water storage table, and guide vanes are provided on the water storage table facing the inlet pipe. A screen is slidably installed on the support cylinder, and a limit ring for restricting the downward movement of the screen is provided on the support cylinder. A cleaning member is provided on the support cylinder facing the screen;

[0010] And a discharge tray slidably installed on the separation cylinder. Guide posts are provided on the support cylinder, and fixing sleeves that cooperate with the guide posts are provided on the discharge tray.

[0011] Further, the separation cylinder is sleeved on the outer peripheral surface of the sewage collection cylinder. The sewage collection cylinder and the separation cylinder divide the bottom of the treatment tank into three regions. The region between the separation cylinder and the treatment tank is the primary sewage collection area, the inside of the sewage collection cylinder is the secondary sewage collection area, and the region between the sewage collection cylinder and the separation cylinder is the aggregate collection area. And the primary sewage collection area and the secondary sewage collection area are connected through a sewage discharge pipe.

[0012] Further, the inlet pipe is connected to an external water supply device through a rotating member. Multiple groups of guide vanes are provided on the side of the inlet pipe close to the water storage table, and the drainage direction of the guide vanes is perpendicular to the setting direction of the inlet pipe.

[0013] Further, a connecting pipe slidably connected to the inlet pipe is provided at the top of the water storage table, and multiple groups of second water inlet holes are provided on the connecting pipe. And in the initial state, the second water inlet holes are misaligned with the first water inlet holes.

[0014] Further, the support cylinder is slidably connected to the sewage collection cylinder, and an elastic member is provided between the support cylinder and the sewage collection cylinder. The screen is slidably arranged on the support cylinder, and a fixing member that abuts against the limit ring is provided at the bottom of the screen. The screen is in an inverted funnel shape, and the diameter of the screen on the side close to the water storage table is larger than the diameter of the bottom of the water storage table.

[0015] Further, the cleaning member is provided with a brush and a spray head. The brush faces the screen. Multiple groups of spray heads are provided, and the spraying direction of the spray heads is tangent to the screen.

[0016] Further, multiple groups of drain grooves distributed in a circular array are provided on the discharge tray. A reciprocating guide groove is provided on the fixing sleeve, and the guide post extends into the reciprocating guide groove. When the guide post rotates following the support cylinder, it drives the fixing sleeve and the discharge tray to swing up and down in cooperation with the reciprocating guide groove to screen out the materials.

[0017] Further, a sewage discharge tray is provided on the separation cylinder, and the sewage discharge tray is located between the screen and the discharge tray. A secondary spray pipe head facing the discharge tray is provided on the sewage discharge tray.

[0018] Furthermore, the height at the center of the sewage discharge tray is higher than that at the edge, and the diameter of the sewage discharge tray is larger than the outer diameter of the separation cylinder and smaller than the inner diameter of the treatment tank. The height at the center of the discharge tray is lower than the height at the edge, and the diameter of the discharge tray is larger than the outer diameter of the sewage collection cylinder and smaller than the inner diameter of the separation cylinder.

[0019] Beneficial effects

[0020] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0021] First, when the material enters the treatment tank, the potential energy of the falling material is converted into the kinetic energy of the rotation of the water storage table through the cooperation of the water storage table and the guide vanes, thereby guiding the material to fall more evenly on the sieve mesh. Since the sieve mesh will descend due to the increased weight when there is material on it, the support cylinder and the water storage table as a whole are pushed down by a certain distance in cooperation with the limit ring, so that the water inlet hole 1 on the water inlet pipe and the water inlet hole 2 on the connecting pipe are connected and sprayed from the nozzle onto the material for cleaning. By setting the spraying direction of the liquid in the nozzle to be tangent to the sieve mesh, when the nozzle sprays and flushes the raw material, it will assist the rotation of the water storage table. At this time, the brush will rotate with the support cylinder to wash the material, improving the cleaning effect;

[0022] Second, through the special setting of the sewage discharge tray, the sewage generated during the cleaning of the raw material on the sieve mesh is discharged into the primary sewage collection area. After the material enters the discharge tray and undergoes secondary cleaning, the sewage is discharged through the drainage groove. Due to the special setting of the discharge tray, the material and sewage will be concentrated near the support cylinder on the discharge tray. Under the cooperation of the fixed sleeve and the guide post, as the support cylinder rotates, the discharge tray is continuously vibrated, thereby vibrating the material into the aggregate area, effectively separating the sewage and the material, and thus improving the subsequent production accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a partial cross-sectional view of the present invention;

[0026] Figure 3 It is a connection diagram of the water storage table and the support cylinder of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged view at A in;

[0028] Figure 5 Schematic connection diagram of the screen and the discharge tray of the present invention;

[0029] Figure 6 Top view of the connection between the screen of the present invention and the cleaning member;

[0030] Figure 7 Schematic connection diagram of the discharge tray and the sewage discharge tray of the present invention.

[0031] Reference numerals: 1, treatment tank; 11, sewage collection cylinder; 12, separation cylinder; 13, sewage discharge pipe; 2, cleaning assembly; 21, water inlet pipe; 211, first water inlet hole; 22, water storage table; 221, guide vane; 222, connecting pipe; 2221, second water inlet hole; 23, support cylinder; 231, cleaning member; 2311, brush; 2312, spray head; 232, limiting ring; 233, guide post; 24, screen; 241, fixing member; 25, discharge tray; 251, fixing sleeve; 2511, reciprocating guide groove; 252, draining groove; 26, sewage discharge tray. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] The present invention will be further described below with reference to the embodiments.

[0034] A pretreatment device for the production of calcium-zinc stabilizer, referring to the attached Figures 1-7 , includes:

[0035] A treatment tank 1, a sewage collection cylinder 11 and a separation cylinder 12 are coaxially installed at the bottom of the treatment tank 1, and the diameter of the separation cylinder 12 is larger than that of the sewage collection cylinder 11. The separation cylinder 12 is sleeved on the outer peripheral surface of the sewage collection cylinder 11. The sewage collection cylinder 11 and the separation cylinder 12 divide the bottom of the treatment tank 1 into three areas. The area between the separation cylinder 12 and the treatment tank 1 is the primary sewage collection area, the inside of the sewage collection cylinder 11 is the secondary sewage collection area, and the area between the sewage collection cylinder 11 and the separation cylinder 12 is the aggregate collection area. The primary sewage collection area and the secondary sewage collection area are connected through a sewage discharge pipe 13. During the cleaning process of the raw materials, the cleaned materials finally fall into the aggregate collection area. The treatment tank 1 is installed through an external mounting frame, and there is enough space at its bottom to process the materials, which is not shown in the figure. The cleaned sewage enters the primary sewage collection area and the secondary sewage collection area respectively, and is finally discharged for centralized collection.

[0036] Cleaning component 2, the cleaning component 2 includes a water storage table 22 and a support cylinder 23 that are interconnected. The support cylinder 23 is movably connected to the sewage collection cylinder 11, and the water storage table 22 is located at the top of the support cylinder 23. The support cylinder 23 is slidably connected to the sewage collection cylinder 11, and an elastic member is provided between the support cylinder 23 and the sewage collection cylinder 11. A water inlet pipe 21 is provided at the top of the water storage table 22, and guide vanes 221 facing the water inlet pipe 21 are provided on the water storage table 22. After the material continuously enters the processing tank 1 and lands on the water storage table 22 and cooperates with the guide vanes 221, it drives the water storage table 22 to rotate, and then evenly scatters the material on the screen 24. A screen 24 is slidably installed on the support cylinder 23, and a limiting ring 232 for restricting the descent of the screen 24 is provided on the support cylinder 23. A cleaning member 231 facing the screen 24 is provided on the support cylinder 23. The screen 24 is slidably arranged on the support cylinder 23, and a fixing member 241 that abuts against the limiting ring 232 is provided at the bottom of the screen 24. The screen 24 is in an inverted funnel shape, and the diameter of the screen 24 on the side close to the water storage table 22 is larger than the diameter of the bottom of the water storage table 22. After there is material on the screen 24, the entire screen 24 will descend due to the increase in material, thereby driving the entire water storage table 22 to have a downward displacement for a certain distance. Since the water inlet pipe 21 is connected to an external water supply device through a rotating member, multiple groups of guide vanes 221 are provided on the side of the water inlet pipe 21 close to the water storage table 22, and the drainage direction of the guide vanes 221 is perpendicular to the setting direction of the water inlet pipe 21. A connecting pipe 222 that is slidably connected to the water inlet pipe 21 is provided at the top of the water storage table 22, and multiple groups of second water inlet holes 2221 are provided on the connecting pipe 222. And in the initial state, the second water inlet holes 2221 and the first water inlet holes 211 are misaligned. When the entire water storage table 22 descends, it will drive the connecting pipe 222 and the water inlet pipe 21 to have a relative displacement. At this time, the guide vanes 221 are communicated with the second water inlet holes 2221, and external water is introduced into the water storage table 22 to cooperate with the cleaning member 231 to clean the raw materials. Since the drainage direction of the guide vanes 221 is perpendicular to the setting direction of the water inlet pipe 21, before the water storage table 22 actively descends, even if there is pressure in the water inlet pipe 21, the liquid will not push the water storage table 22 and will not actively enter the water storage table 22.

[0037] Further, a brush 2311 and a nozzle 2312 are provided on the cleaning member 231. The brush 2311 faces the screen 24, and multiple groups of nozzles 2312 are provided. The spraying direction of the nozzles 2312 is tangent to the screen 24. When the water storage table 22 rotates, the brush 2311 provided on the cleaning member 231 will wash the raw materials on the screen 24 to further remove dirt that cannot be washed away. Due to the special setting of the nozzles 2312, after the liquid is sprayed out from the nozzles 2312, it cannot wash the raw materials. Under the reaction force of the sprayed liquid, it can also assist the water storage table 22 to rotate.

[0038] In the above technical solution, when the material enters the processing box 1, the potential energy of the falling material is then converted into the kinetic energy of the rotation of the water storage table 22 in cooperation with the water storage table 22 and the guide vanes 221. Furthermore, when the material enters the processing box 1, multiple groups of guide vanes 221 can scatter the material more evenly on the screen 24. At the same time, when there is material on the screen 24, it will drop due to the increase in weight. At this time, the limiting ring 232 is used to push the support cylinder 23 and the entire water storage table 22 to descend a certain distance, so that the water inlet hole 211 on the water inlet pipe 21 is communicated with the water inlet hole 2221 on the connecting pipe 222, filling the water storage table 22 with water and spraying it onto the material from the spray head 2312 for cleaning. Since the spraying direction of the liquid in the spray head 2312 is tangent to the screen 24, when the spray head 2312 sprays and flushes the raw material, it will assist the rotation of the water storage table 22. At this time, the brush 2311 will rotate with the support cylinder 23 to wash the material, improving the cleaning effect.

[0039] And a discharge tray 25 slidably mounted on the separation cylinder 12. A guide post 233 is provided on the support cylinder 23, and a fixed sleeve 251 cooperating with the guide post 233 is provided on the discharge tray 25. When the support cylinder 23 rotates, the guide post 233 and the fixed sleeve 251 cooperate to achieve vibration and discharge the material.

[0040] Furthermore, multiple groups of water drainage grooves 252 distributed in a circular array are provided on the discharge tray 25. A reciprocating guide groove 2511 is provided on the fixed sleeve 251, and the guide post 233 extends into the reciprocating guide groove 2511. When the guide post 233 rotates with the support cylinder 23, it drives the fixed sleeve 251 and the discharge tray 25 to swing up and down in cooperation with the reciprocating guide groove 2511 to screen out the material.

[0041] In addition, a sewage discharge tray 26 is provided on the separation cylinder 12, and the sewage discharge tray 26 is located between the screen 24 and the discharge tray 25. A secondary spray pipe head facing the discharge tray 25 is provided on the sewage discharge tray 26. After cleaning, the material will fall on the discharge tray 25, and the sewage in the raw material will be discharged through the water drainage grooves 252, and the secondary spray pipe head facing the discharge tray 25 provided on the sewage discharge tray 26 is used to remove the sewage in the raw material again.

[0042] It should be noted that the height of the center of the sewage discharge tray 26 is higher than that of the edge, and the diameter of the sewage discharge tray 26 is larger than the outer diameter of the separation cylinder 12 and smaller than the inner diameter of the processing box 1, which is convenient for the sewage discharge tray 26 to discharge the sewage flowing out of the screen 24 to the primary sewage collection area. The height of the center of the discharge tray 25 is lower than that of the edge, which is convenient for discharging the sewage into the secondary sewage collection area. And the diameter of the discharge tray 25 is larger than the outer diameter of the sewage collection cylinder 11 and smaller than the inner diameter of the separation cylinder 12. When the discharge tray 25 reciprocates and vibrates, the material is shaken into the aggregate area.

[0043] In the above technical solution, through the special setting of the sewage discharge tray 26, the sewage generated when the raw materials are cleaned on the screen 24 is discharged into the primary sewage collection area. After the materials enter the discharge tray 25, they are cleaned for the second time, and the sewage is discharged through the water drainage groove 252. Due to the special setting of the discharge tray 25, the materials and sewage will be concentrated near the support cylinder 23 of the discharge tray 25. At this time, under the cooperation of the fixed sleeve 251 and the guide post 233, as the support cylinder 23 rotates, the discharge tray 25 is continuously vibrated, and then the materials are vibrated and shaken into the aggregate area, effectively separating the sewage from the materials, thereby improving the subsequent production accuracy.

[0044] Working principle: The materials are introduced into the processing box 1. At this time, the materials fall on the water storage table 22 and cooperate with the guide vane 221 to convert the potential energy of the falling materials into the kinetic energy of the rotation of the water storage table 22. Then, while the materials continuously enter the processing box 1, the rotation of the water storage table 22 is guided. With multiple groups of guide vanes 221, the materials can be scattered more evenly on the screen 24. At this time, when there are materials on the screen 24, it will descend due to the increase in weight. At this time, in cooperation with the limit ring 232, the support cylinder 23 and the entire water storage table 22 are pushed down by a certain distance, so that the water inlet hole 211 on the water inlet pipe 21 is communicated with the water inlet hole 2221 on the connecting pipe 222, filling the water storage table 22 with water and spraying it onto the materials from the spray head 2312 to wash and clean the materials. Since the spraying direction of the liquid in the spray head 2312 is tangent to the screen 24, when the spray head 2312 sprays and washes the raw materials, it will assist the rotation of the water storage table 22. When the water storage table 22 and the support cylinder 23 rotate, the brush 2311 arranged on the cleaning member 231 and close to the screen 24 will rotate with the support cylinder 23 to wash the materials, improving the cleaning effect. Since the screen 24 is funnel-shaped, when the materials fall from the top to the bottom of the screen 24, it will also guide the materials to flip, further enabling the materials to fully contact the washing liquid and the brush 2311. After cleaning, the materials enter the discharge tray 25. Through the special setting of the sewage discharge tray 26, the sewage generated when the raw materials are cleaned on the screen 24 is discharged into the primary sewage collection area. The materials entering the discharge tray 25 are cleaned for the second time, and the sewage is discharged through the water drainage groove 252 into the sewage collection cylinder 11. Due to the special setting of the discharge tray 25, the materials and sewage will be concentrated near the support cylinder 23 of the discharge tray 25. Since the support cylinder 23 rotates continuously during operation, the guide post 233 rotates with the support cylinder 23 and cooperates with the reciprocating guide groove 2511 on the fixed sleeve 251 to continuously vibrate the discharge tray 25 up and down, and then vibrate and shake the materials into the aggregate area, effectively separating the sewage from the materials, thereby improving the subsequent production accuracy.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pretreatment device for the production of calcium zinc stabilizer, characterized in that: include: A treatment box (1), wherein a dirt collecting cylinder (11) and a separation cylinder (12) are coaxially mounted on the bottom of the treatment box (1), and the diameter of the separation cylinder (12) is greater than the diameter of the dirt collecting cylinder (11); A cleaning assembly (2), the cleaning assembly (2) comprising a water storage platform (22) and a support cylinder (23) which are interconnected, the support cylinder (23) being movably connected to the dirt collecting cylinder (11), the water storage platform (22) being located at the top of the support cylinder (23), the support cylinder (23) being slidably connected to the dirt collecting cylinder (11), an elastic member being provided between the support cylinder (23) and the dirt collecting cylinder (11), a water inlet pipe (21) being provided at the top of the water storage platform (22), and a spring member (21) being provided on the water storage platform (22) which is directed toward the water inlet pipe ( The water inlet pipe (21) is connected to an external water supply device through a rotating member, a plurality of groups of water inlet holes (211) are provided on one side of the water inlet pipe (21) close to the water storage platform (22), and the drainage direction of the water inlet holes (211) is perpendicular to the setting direction of the water inlet pipe (21), a connecting pipe (222) slidably connected to the water inlet pipe (21) is provided on the top of the water storage platform (22), and a plurality of groups of water inlet holes (2221) are provided on the connecting pipe (222), and the initial state is In the state, the second water inlet hole (2221) and the first water inlet hole (211) are staggered, a screen (24) is slidably mounted on the support cylinder (23), and a limiting ring (232) for limiting the descent of the screen (24) is provided on the support cylinder (23), a cleaning member (231) facing the screen (24) is provided on the support cylinder (23), and a brush (2311) and a nozzle (2312) are provided on the cleaning member (231), the brush (2311) facing the screen (24), and the nozzle (2312) 2312) are provided with a plurality of groups, and the spraying direction of the nozzle (2312) is tangent to the screen (24). When there is material on the screen (24), it will drop due to the increase of weight. At this time, the support cylinder (23) and the water storage platform (22) are pushed down as a whole by the limit ring (232), so that the water inlet hole 1 (211) on the water inlet pipe (21) and the water inlet hole 2 (2221) on the connecting pipe (222) are connected, and the water storage platform (22) is filled with water and sprayed toward the material from the nozzle (2312); and a discharge plate (25) slidably mounted on the separation cylinder (12); a guide column (233) is provided on the support cylinder (23), and a fixing sleeve (251) matched with the guide column (233) is provided on the discharge plate (25).

2. A pretreatment equipment for the production of calcium zinc stabilizer according to claim 1, characterized in that: The separation cylinder (12) is sleeved on the outer peripheral surface of the sewage collecting cylinder (11), and the sewage collecting cylinder (11) and the separation cylinder (12) divide the bottom of the treatment box (1) into three areas, the area between the separation cylinder (12) and the treatment box (1) is a primary sewage collecting area, the area inside the sewage collecting cylinder (11) is a secondary sewage collecting area, and the area between the sewage collecting cylinder (11) and the separation cylinder (12) is a material collecting area, and the primary sewage collecting area and the secondary sewage collecting area are connected via a sewage discharge pipe (13).

3. A pretreatment equipment for the production of calcium zinc stabilizer according to claim 1, characterized in that: The screen (24) is slidably arranged on the support cylinder (23), and a fixing piece (241) is provided at the bottom of the screen (24) to abut against the limiting ring (232). The screen (24) is in the shape of an inverted funnel, and the diameter of the side of the screen (24) close to the water storage platform (22) is larger than the diameter of the bottom of the water storage platform (22).

4. A pretreatment equipment for the production of calcium zinc stabilizer according to claim 1, characterized in that: The discharge plate (25) is provided with a plurality of drain grooves (252) distributed in a circular array, the fixed sleeve (251) is provided with a reciprocating guide groove (2511), and the guide column (233) extends into the reciprocating guide groove (2511). When the guide column (233) rotates with the support cylinder (23), the reciprocating guide groove (2511) drives the fixed sleeve (251) and the discharge plate (25) to swing up and down, thereby screening out the materials.

5. The pretreatment equipment for producing calcium zinc stabilizer according to claim 1, characterized in that: The separation cylinder (12) is provided with a drain pan (26), and the drain pan (26) is located between the screen (24) and the discharge pan (25), and the drain pan (26) is provided with a secondary spray pipe head facing the discharge pan (25).

6. A pretreatment equipment for the production of calcium zinc stabilizer according to claim 5, characterized in that: The height of the center of the drain pan (26) is higher than that of the edge, and the diameter of the drain pan (26) is larger than the outer diameter of the separation barrel (12) and smaller than the inner diameter of the treatment box (1); the height of the center of the discharge pan (25) is lower than that of the edge, and the diameter of the discharge pan (25) is larger than the outer diameter of the collection barrel (11) and smaller than the inner diameter of the separation barrel (12).

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