CN212882240U - Dry powder does not have aldehyde lacquer apparatus for producing - Google Patents

Abstract

The utility model provides a dry powder does not have aldehyde lacquer apparatus for producing, including hopper, air current screening machine, the high-speed mixer and the surge bin that are used for preparing preliminary mixed raw materials, wherein, the discharge gate of hopper with the material import of air current screening machine is through a first screw conveyer intercommunication, the material export of air current screening machine with the feed inlet of high-speed mixer is through a second screw conveyer intercommunication, the discharge gate of high-speed mixer through a discharge valve with the feed inlet intercommunication of surge bin, the surge bin mainly used deposits temporarily the misce bene that the high-speed mixer unloaded. The production device has the characteristics of high production efficiency and uniform material stirring, overcomes the problems that the mechanical stirring speed is low, dead angles easily appear and the materials cannot be uniformly stirred, so that the prepared dry powder aldehyde-free paint has smaller fineness and more delicate product, the use effect of the dry powder aldehyde-free paint is improved, and the production device is suitable for production of thin-coating dry powder paint.

Description

Dry powder does not have aldehyde lacquer apparatus for producing

Technical Field

The utility model belongs to the technical field of the coating processing, concretely relates to thin type of scribbling dry powder coating dry powder does not have apparatus for producing of aldehyde lacquer.

Background

In recent years, the coating industry in China is rapidly developed, the product research and development also develop towards the directions of water-based, high solid content, low Volatile Organic Compound (VOC) and the like, and dry powder coating is environment-friendly coating which is popular at present and is very suitable for decorating household interior walls compared with the traditional emulsion paint.

Applicants have developed a series of dry powder coatings that contain a significant amount of ultrafine materials compared to existing dry powder coatings. Most of the existing dry powder coating production processes are mainly completed by a horizontal stirring device. The horizontal mixer device is structurally characterized in that a main shaft is arranged in a cylinder body, a double-layer spiral belt is wound on the main shaft, the spiral belt is driven by the main shaft to rotate to push materials to move along the spiral direction of the spiral belt, a discharge hole is formed in the center of the bottom of the cylinder body, and the spiral structure of the outer-layer spiral belt is matched with the rotation direction of the main shaft to drive the materials on the inner side of the cylinder wall to move towards the discharge hole; when the structure is used for stirring superfine materials, the superfine powder cannot be scattered, the stirring speed is low, so that a plurality of superfine materials exist in the product in a bulk shape, and in addition, some auxiliary agents are light in specific gravity and are flocculent, and cannot be effectively and uniformly mixed by adopting the original equipment, so that the performance of the product is seriously influenced.

For this reason, the applicant discloses an inorganic ecological wall material production system in utility model patent with application number CN2019214600998, including feeder hopper, high-speed mixer, surge bin, finished product feed bin and packagine machine, the discharge gate of feeder hopper with between the feed inlet of high-speed mixer the discharge gate of surge bin with between the feed inlet of finished product feed bin and between the discharge gate of finished product feed bin with respectively through a screw conveyer transmission material between the material inlet of packagine machine, the discharge gate of high-speed mixer through a discharge valve with the feed inlet intercommunication of surge bin, surge bin capacity correspond with the maximum stirring volume setting of single of high-speed mixer. The utility model discloses an inorganic ecological wall material production system disclosed in the patent can realize the material homogeneous mixing effectively through high-speed mixer and surge bin etc. but this inorganic ecological wall material production system mainly is applicable to thick coating type dry powder coating, and thick coating type dry powder coating adopts this production system production can reach the performance of product.

However, the particle size of the thin coating type dry powder coating is smaller, such as the particle size of the material is larger than 1000 meshes, and the nano material and the like, the requirement on the performance of the product is higher, but the material with small particle size can introduce impurities or agglomerate in the transportation, storage and stacking processes, and can agglomerate due to moisture absorption, and the purity of the material is limited, so that the performance of the thin coating type dry powder coating product is affected. The applicant adopts the inorganic ecological wall material production system disclosed in the above utility model patent to produce the in-process of thin type dry powder coating of scribbling still easily takes place the phenomenon of reuniting, and impurity content is high to make the particle degree of thin type dry powder coating comparatively crude, stir the degree of consistency unsatisfactory, influence the result of use of thin type dry powder coating of scribbling.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a dry powder formaldehyde-free paint production apparatus suitable for producing thin coating dry powder paint, so as to solve the above problems.

The utility model provides a dry powder does not have aldehyde lacquer apparatus for producing, including hopper, air current screening machine, the high-speed mixer and the surge bin that are used for preparing preliminary mixed raw materials, wherein, the discharge gate of hopper with the material import of air current screening machine is through a first screw conveyer intercommunication, the material export of air current screening machine with the feed inlet of high-speed mixer is through a second screw conveyer intercommunication, the discharge gate of high-speed mixer through a discharge valve with the feed inlet intercommunication of surge bin, the surge bin mainly is used for depositing temporarily the misce bene that the high-speed mixer unloaded.

Based on the above, the airflow screening machine comprises a cavity, a dust removal elbow arranged at the upper end of the cavity and a slag discharge port arranged at the lower end of the cavity, wherein a vertical circumferential cylindrical screen is arranged in the cavity, stirring blades are arranged on the inner side of the screen, the screen is respectively communicated with the material inlet, the material outlet and the slag discharge port, the material inlet is arranged above the cavity, the material outlet is arranged under the screen, and the slag discharge port is arranged at the lower end of the cavity and is arranged at one side of the material outlet and one side of the screen.

Based on the above, the aperture of the screen is not less than 200 meshes.

Based on the above, the stirring speed of the stirring blade is greater than or equal to 1000 revolutions per minute.

Based on the above, the number of the stirring blades is 3.

Based on above-mentioned dry powder does not have aldehyde lacquer apparatus for producing, still include a sack cleaner, be equipped with the blast pipe on the high-speed mixer, be provided with the pipe that gathers dust on the surge bin, the sack cleaner pass through the pipeline respectively with the elbow that removes dust the blast pipe gather dust the pipe with the feed inlet intercommunication of hopper.

Based on above-mentioned dry powder does not have aldehyde paint apparatus for producing, still including the finished product storehouse, the feed inlet and a third screw conveyer intercommunication in this finished product storehouse, this third screw conveyer through a spiral material loading machine with the discharge gate intercommunication in surge bin.

Based on the above, the bag-type dust collector is further communicated with the feed inlet of the finished product bin through a pipeline.

Based on above-mentioned dry powder does not have aldehyde lacquer apparatus for producing, still including packagine machine, this packagine machine's feed inlet with the discharge gate in finished product storehouse is through a fourth screw conveyer intercommunication.

Based on above-mentioned dry powder does not have aldehyde paint apparatus for producing, still including with the raw materials metering machine of the feed inlet intercommunication of hopper.

The "dry powder aldehyde-free paint" herein mainly refers to an inorganic dry powder thin coating type paint, and the inorganic dry powder thin coating type paint includes raw materials, nano materials and the like with the particle size of more than 1250 meshes. In the above-mentioned dry powder aldehyde-free paint production apparatus, each raw material of the dry powder aldehyde-free paint is added into the hopper, and is preliminarily mixed in the hopper to obtain the preliminary mixed raw material; the primary mixed raw materials are transmitted to the airflow screening machine through the first screw conveyor for screening treatment, the mixed materials entering the airflow screening machine are in a suspension state under the high-speed rotation of the stirring blades, the materials are further scattered, and large agglomerated materials are avoided from being formed, so that the materials are further mixed, the uniformity of the materials is improved, the step that the raw materials for preparing the inorganic dry powder thin coating type coating need secondary grinding is omitted, the materials meeting the requirements are discharged from the material outlet through a screen, and impurities and large-particle-size materials are discharged from the slag discharge port; conveying the mixture materials meeting the requirements into the high-speed mixer through a second screw conveyor for further mixing, so that the materials are mixed more uniformly, and obtaining a dry powder formaldehyde-free paint product in the buffer bin; the dry powder aldehyde-free paint product is sequentially conveyed to the finished product bin through the spiral feeding machine and the third spiral conveyer, enters the packaging machine through the fourth spiral conveyer, and is packaged by the packaging machine to finally obtain a dry powder aldehyde-free paint finished product.

Compared with the prior art, the utility model provides a dry powder does not have aldehyde lacquer apparatus for producing has following characteristics:

(1) the airflow sieving machine used in the dry powder aldehyde-free paint production device can depolymerize large aggregates in materials, reduce or avoid material agglomeration, enable the materials to be finer and finer, can directly add raw materials sold in the market into the hopper, and does not need secondary grinding, so that compared with the traditional thin coating type dry powder paint, the step of secondary grinding of the raw materials is omitted;

(2) the preliminary mixed materials are pretreated by the airflow sieving machine to ensure that the mixed materials are uniformly stirred and are finer, so that the stirring time of the high-speed mixer is greatly shortened, the stirring effect is improved, the high-speed mixer is not heated due to long high-speed stirring time, the materials are agglomerated again, and the uniform mixing and ideal dispersity of the product are ensured;

(3) the airflow sieving machine can remove smaller impurities, large-particle-size materials and the like in the materials while scattering the materials and mixing the materials, and can improve the hand feeling and stirring construction effect of the dry powder formaldehyde-free paint;

(4) the air flow screening machine has the characteristics of high efficiency and strong material adaptability, is suitable for the production of dry powder aldehyde-free paint, and can meet the requirements of small filler particle size and large particle size distribution range of the dry powder aldehyde-free paint, therefore, the dry powder aldehyde-free paint production device provided by the utility model has the characteristics of high production efficiency and uniform material stirring, and overcomes the problems that the mechanical stirring speed is low, dead angles easily appear and the materials cannot be uniformly stirred, so that the fineness of the prepared dry powder aldehyde-free paint is smaller, the product is more delicate, the using effect of the dry powder aldehyde-free paint is further improved, and the dry powder aldehyde-free paint production device is also suitable for the production of thin-coating dry powder paint;

(5) the utility model provides a dry powder does not have aldehyde lacquer apparatus for producing can avoid the workshop dust to fly upward through using the sack cleaner, to the zero pollution of environment, can also carry out recycle to the raw materials of dry powder does not have aldehyde lacquer simultaneously, realize the zero release;

(6) the utility model provides a dry powder does not have aldehyde lacquer apparatus for producing can realize the automated production of dry powder does not have aldehyde lacquer through using screw conveyer and spiral material loading machine, further improves production efficiency, reduces the cost of labor.

Drawings

Fig. 1 is a schematic structural diagram of a dry powder formaldehyde-free paint production device provided by the embodiment of the utility model.

Fig. 2 is a plan view of the dry powder aldehyde-free paint manufacturing apparatus shown in fig. 1.

Figure 3 is a schematic diagram of the construction of the air flow screen machine used in figure 1.

Wherein the symbols in the figures represent: the device comprises a hopper 1, a first screw conveyor 2, an airflow screening machine 3, a second screw conveyor 4, a high-speed mixer 5, a buffer bin 6, a screw feeding machine 7, a third screw conveyor 8, a finished product bin 9, a fourth screw conveyor 10, a packaging machine 11, a dust remover 12, a material inlet 31, a material outlet 32, a cavity 33, a slag discharge port 34, a dust removal elbow 35, a motor 36, a discharge valve 51, an exhaust hole 52 and a dust collection pipe 61.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a dry powder aldehyde-free paint manufacturing apparatus, which is suitable for manufacturing a thin coating type dry powder paint with small particle size and containing nano material. Specifically, the dry powder formaldehyde-free paint production device provided by the embodiment comprises a hopper 1, a first screw conveyor 2, an air flow screening machine 3, a second screw conveyor 4, a high-speed mixer 5, a buffer bin 6, a screw feeding machine 7, a third screw conveyor 8, a finished product bin 9, a fourth screw conveyor 10 and a packaging machine 11. The discharge port of the hopper 1 and the material inlet 31 of the airflow sieving machine 3 are communicated through the first screw conveyor 2, the material outlet 32 of the airflow sieving machine 3 is communicated with the feed port of the high-speed mixer 5 through the second screw conveyor 4, the discharge port of the high-speed mixer 5 is communicated with the feed port of the surge bin 6 through a discharge valve 51, the discharge port of the surge bin 6 is communicated with the third screw conveyor 8 through the screw feeding machine 7, and the third screw conveyor 8 is communicated with the feed port of the finished product bin 9.

Hopper 1 mainly used prepares preliminary mixed raw materials, including hopper feed inlet and hopper discharge gate. In this embodiment, the hopper 1 has a conical shape. The hopper 1 also comprises a raw material metering machine in front of the hopper, and the raw material metering machine is used for weighing each raw material of the dry powder aldehyde-free paint. After being weighed, the raw materials enter the hopper 1 through the hopper feeding hole to be primarily mixed.

The airflow sieving machine 3 comprises a cavity 33, a dust removing elbow 35 arranged at the upper end of the cavity 33 and a slag discharge port 34 positioned at the lower end of the cavity 33, wherein a vertical circumferential cylindrical sieve (not shown) with the aperture being more than or equal to 200 meshes is arranged in the cavity 33, 3 stirring blades are arranged on the inner side of the sieve, and the stirring speed of the stirring blades is more than or equal to 1000 revolutions per minute. The screen cloth respectively with material import 31 material export 32 with arrange the cinder notch 34 intercommunication, material import 31 is located the top of cavity 33, material export 32 is located under the screen cloth, arrange the cinder notch 34 set up in the lower extreme of cavity 33 is located material export 31 with one side of screen cloth, not with the screen cloth links to each other, also not with material export 32 intercommunication.

The first screw conveyor 2 conveys the preliminary mixed raw materials to the airflow sieving machine 3, the preliminary mixed raw materials enter the cavity 33 through the material inlet 31, the stirring blades inside the screen rotate at a high speed under the driving of a motor 36, the rotating speed is greater than 1000 revolutions per minute, so that the materials entering the screen rotate under the stirring of the stirring blades, the materials meeting the requirements pass through the screen and are discharged from the material outlet 32, and the impurities and the materials with large particle size are discharged from the slag discharge port 34.

The airflow sieving machine 3 is used for pretreating the preliminary mixed raw material of the dry powder aldehyde-free paint, the aperture of the sieve is more than 200 meshes, the materials passing through the sieve depolymerize large aggregates, reduce or avoid the aggregation of the materials with small particle size, and remove smaller impurities and the materials with large particle size in the materials, thereby having good effects on improving the hand feeling of the aldehyde-free paint and stirring during construction; the materials passing through the screen are basically in a suspension state at the stirring speed of the stirring blade higher than 1000 rpm, and meanwhile, the materials are further scattered by the stirring blade, and are stirred for 5 minutes each time, the materials are pretreated by the airflow sieving machine 3, so that the stirring time is greatly shortened in the high-speed mixer 5, the stirring effect is improved, and the high-speed mixer 5 is not heated due to long stirring time, so that the materials are not agglomerated again; the uniform mixing and ideal dispersity of the product are ensured; the step of secondary grinding is needed to omit the raw material of the dry powder aldehyde-free paint.

Therefore, the airflow screening machine 3 does not rely on the gravity of the materials to screen, does not need the materials to have good fluidity, and can still carry out normal screening treatment on the materials when the fineness of the materials is larger than 1250 meshes or is nano-scale.

The high-speed mixer 5 is mainly used for further mixing materials, so that the raw materials of the dry powder aldehyde-free paint are mixed more uniformly to prepare the product. The high-speed mixer 5 comprises a pot body, a pot cover and a stirring mechanism arranged in the pot body, wherein the stirring mechanism comprises a central rotating shaft and three vertical stirring paddles, and the bottoms of the three vertical stirring paddles are respectively connected with the central rotating shaft through a connecting blade; the feed inlet of the high-speed mixer 5 is arranged on the pot cover, the pot cover is also provided with an exhaust pipe 52, and the exhaust pipe 52 is used for pressure relief.

The surge bin 6 is mainly used for temporarily storing the mixed materials discharged by the high-speed mixer. The surge bin 6 specifically comprises an upper half bin and a lower half bin. The feed inlet of the buffer bin 6 is arranged at the top of the upper half bin, and the top of the upper half bin is also communicated with a pressurizing air pipe and a dust collecting pipe 61. The pressurizing air pipe can accelerate the discharging of the buffer bin 6 by conveying air into the buffer bin 6. The dust collection pipe 61 enables the whole buffer bin 6 not to be sealed, so that on one hand, the high-speed mixer 5 can discharge materials more smoothly, and on the other hand, due to the high pressure in the high-speed mixer 5, the dust collection pipe 61 can prevent the connection part of the pressurized air pipe and the buffer bin 6 from emitting materials outwards; the discharge hole of the buffer bin 6 is formed in the bottom of the lower half bin, the lower half bin is of a tapered structure from top to bottom, dead corners do not exist, and materials can be discharged completely.

In order to avoid the pollution of dust materials to the workshop environment, the dry powder formaldehyde-free paint production device further comprises a bag-type dust remover 12, and an air inlet of the bag-type dust remover 12 is communicated with the dust removing elbow 35, the exhaust pipe 52 and the dust collecting pipe 61 through pipelines respectively. The air inlet of the bag-type dust collector 12 is also communicated with two air exhaust pipes, and one ends of the two air exhaust pipes respectively extend to the upper part of the hopper 1 and the upper part of the finished product bin 9. The materials recovered by the bag-type dust collector 12 from the hopper 1, the airflow screening machine 3, the high-speed mixer 5, the buffer bin 6 and the finished product bin 9 can be returned to the hopper 1 for recycling, so that dust flying in a production workshop can be avoided, zero pollution to the environment can be realized, and meanwhile, the raw materials of dry powder aldehyde-free paint can be recycled, and zero emission can be realized.

When in specific use, after the commercially available raw materials are respectively placed in a raw material metering machine for weighing, the raw materials are firstly put into the hopper 1 and then are sent into the airflow sieving machine 3 through the first spiral conveyer 2, after the pretreatment of stirring, scattering, sieving and the like of the airflow sieving machine 3, the mixed materials are sent into the high-speed mixer 5 through the second spiral conveyer 4, after the full stirring and mixing of the high-speed mixer 5, the mixed materials are all unloaded into the buffer bin 6 at one time, and then can be stirred at the next time, while the high-speed mixer 5 is stirring for the next time, the mixed materials are slowly transferred from the buffer bin 6 to the finished product bin 9 through the spiral feeding machine 7 and the third spiral conveyer 8 in sequence, and finally, the finished product bin 9 sends the materials into the packaging machine 11 through a fourth screw conveyor 10 to complete packaging.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (10)

1. The utility model provides a dry powder does not have aldehyde lacquer apparatus for producing which characterized in that: including hopper, air current screening machine, high-speed mixer and the surge bin that is used for preparing preliminary mixed raw materials, wherein, the discharge gate of hopper with the material import of air current screening machine is through a first screw conveyer intercommunication, the material outlet of air current screening machine with the feed inlet of high-speed mixer is through a second screw conveyer intercommunication, the discharge gate of high-speed mixer through a discharge valve with the feed inlet intercommunication of surge bin, the surge bin mainly used deposits temporarily the mixed material that the high-speed mixer unloaded.

2. The dry powder aldehyde-free paint production apparatus according to claim 1, wherein: the airflow screening machine comprises a cavity, a dust removal elbow arranged at the upper end of the cavity and a slag discharge port arranged at the lower end of the cavity, wherein a vertical circumferential cylindrical screen is arranged in the cavity, stirring blades are arranged on the inner side of the screen, the screen is respectively communicated with a material inlet, a material outlet and the slag discharge port, the material inlet is arranged above the cavity, the material outlet is arranged under the screen, and the slag discharge port is arranged at the lower end of the cavity and is arranged at one side of the material outlet and one side of the screen.

3. The dry powder aldehyde-free paint production device according to claim 2, wherein: the aperture of the screen is more than or equal to 200 meshes.

4. The dry powder aldehyde-free paint production apparatus according to claim 3, wherein: the stirring speed of the stirring blade is more than or equal to 1000 revolutions per minute.

5. The dry powder aldehyde-free paint production apparatus according to claim 4, wherein: the number of the stirring blades is 3.

6. The dry powder aldehyde-free paint production device according to any one of claims 2 to 5, characterized in that: the high-speed mixer is characterized by further comprising a bag-type dust collector, an exhaust pipe is arranged on the high-speed mixer, a dust collecting pipe is arranged on the buffer bin, and the bag-type dust collector is communicated with the dust collecting elbow, the exhaust pipe, the dust collecting pipe and the feed inlet of the hopper through pipelines respectively.

7. The dry powder aldehyde-free paint production apparatus according to claim 6, wherein: the device is characterized by further comprising a finished product bin, wherein a feeding hole of the finished product bin is communicated with a third screw conveyor, and the third screw conveyor is communicated with a discharging hole of the buffer bin through a screw feeding machine.

8. The dry powder aldehyde-free paint production apparatus according to claim 7, wherein: the bag-type dust collector is also communicated with the feed inlet of the finished product bin through a pipeline.

9. The dry powder aldehyde-free paint production apparatus according to claim 8, wherein: the packaging machine is characterized by further comprising a packaging machine, and a feeding hole of the packaging machine is communicated with a discharging hole of the finished product bin through a fourth screw conveyor.

10. The dry powder aldehyde-free paint production apparatus according to claim 1, wherein: the device also comprises a raw material metering machine communicated with the feed inlet of the hopper.

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