阅读说明：本技术 一种具备高耐温性的桃红色原及其制备方法 (Peach red chromogen with high temperature resistance and preparation method thereof ) 是由 马晓鸣 于 2021-09-15 设计创作，主要内容包括：本发明涉及颜料技术领域。目的在于提供一种具备高耐温性的桃红色原,包括如下重量份的原材料：碱性红15-20份；冰醋酸2-5份；磷酸氢二钠3-6份；钨酸钠8-12份；钼酸钠18-20份；耐温改性剂2-4份；所述耐温改性剂由纳米级二氧化钛和纳米级高岭土按照2:1的重量份混合而成。本发明通过耐高温助剂的加入,对颜料进行无机杂化改性,以纳米级二氧化钛作为颜料颗粒包核,使得颜料的热稳定性得到极大的提升,且纳米级二氧化钛粒径小、分散均匀,更加便于形成包核,使颜料分子之间连接结构更加稳定,生产的颜料既具备无机颜料耐高温、耐光等特点,又具备有机颜料色泽鲜亮,着色度强的特性。(The invention relates to the technical field of pigments. Aiming at providing a peach red chromogen with high temperature resistance, which comprises the following raw materials in parts by weight: 15-20 parts of basic red; 2-5 parts of glacial acetic acid; 3-6 parts of disodium hydrogen phosphate; 8-12 parts of sodium tungstate; 18-20 parts of sodium molybdate; 2-4 parts of a temperature-resistant modifier; the temperature-resistant modifier is formed by mixing nano-scale titanium dioxide and nano-scale kaolin according to the weight ratio of 2: 1. According to the invention, the inorganic hybrid modification is carried out on the pigment by adding the high-temperature resistant auxiliary agent, the nano-scale titanium dioxide is used as a pigment particle core, so that the thermal stability of the pigment is greatly improved, the nano-scale titanium dioxide has small particle size and is uniformly dispersed, the core is more conveniently formed, the connecting structure between pigment molecules is more stable, and the produced pigment has the characteristics of high-temperature resistance, light resistance and the like of the inorganic pigment, and also has the characteristics of bright color and strong tinting strength of the organic pigment.)

1. A peach red chromogen with high temperature resistance is characterized in that: the composite material comprises the following raw materials in parts by weight:

15-20 parts of basic red;

2-5 parts of glacial acetic acid;

3-6 parts of disodium hydrogen phosphate;

8-12 parts of sodium tungstate;

18-20 parts of sodium molybdate;

26-28 parts of hydrochloric acid;

2-4 parts of a temperature-resistant modifier;

the temperature-resistant modifier is formed by mixing nano-scale titanium dioxide and nano-scale kaolin according to the weight ratio of 2: 1.

2. The pink chromogen with high temperature resistance according to claim 1, which is prepared from the following raw materials in parts by weight:

17 parts of basic red;

5 parts of glacial acetic acid;

5 parts of disodium hydrogen phosphate;

10 parts of sodium tungstate;

18 parts of sodium molybdate;

16 parts of hydrochloric acid;

3 parts of a temperature-resistant modifier.

3. The method for preparing pink chromogen with high temperature resistance according to claim 2, which comprises the following steps:

s1, stirring the basic red in water at the temperature of 80-90 ℃ until the basic red is completely dissolved to obtain a water solution A;

s2, stirring sodium tungstate, sodium molybdate and disodium hydrogen phosphate in water until the sodium tungstate, the sodium molybdate and the disodium hydrogen phosphate are completely dissolved to obtain a water solution B;

s3, mixing the aqueous solution A and the aqueous solution B, adding the residual materials, keeping the temperature at 45-55 ℃, keeping the stirring speed at 50-55 r/min, and stirring and mixing for 30-60min to obtain a pigment suspension;

and S4, filtering, washing, drying and crushing the pigment suspension to obtain the finished raw material product.

4. The method for preparing pink chromogen with high temperature resistance according to claim 3, wherein the method comprises the following steps: the steps S1, S2 and S3 are all performed in a pump-blowing type anti-settling stirring tank, the pump-blowing type anti-settling stirring tank comprises a tank body (1), a discharge hole (2) is formed in the bottom of one side of the tank body (1), a stirring mechanism is arranged in the tank body (1), and an anti-settling mechanism is arranged at the bottom of the tank body (1);

the stirring mechanism comprises a main shaft (3) vertically arranged at the center of the tank body (1) and a stirring component arranged on the main shaft (3); the upper end of the main shaft (3) is connected with a stirring motor (4) fixedly arranged at the top of the tank body (1), and the lower end of the main shaft (3) is in transmission connection with the bottom sinking prevention mechanism.

5. The method for preparing pink chromogen with high temperature resistance according to claim 4, wherein the method comprises the following steps: the anti-sinking mechanism comprises a driving disc (5) obliquely arranged below the main shaft (3), a driving shaft (6) is arranged at the center of the upper surface of the driving disc (5), and the driving shaft (6) penetrates through a shaft seat (7) at the bottom of the tank body (1) to extend into the tank body (1) and is connected with the main shaft (3) through a flange;

the anti-sinking mechanism also comprises a plurality of groups of pump blowing assemblies which are uniformly arranged on the inner surface of the bottom of the tank body (1) in an annular shape around the main shaft (3); the pump blowing assembly comprises a circular pump barrel (8) with an opening at the top, a plurality of bottom blowing heads (9) with fan-shaped flow channels are uniformly arranged on the inner surface of the bottom of the tank body (1) on the periphery of the pump barrel (8) by taking the pump barrel (8) as the center, the bottom blowing heads (9) are communicated with the pump barrel (8), and bottom blowing one-way valves which are communicated from inside to outside of the pump barrel (8) in a one-way mode are arranged on the bottom blowing heads (9); the pump cylinder (8) is also internally provided with a piston head (10) which is matched with the pump cylinder and can slide up and down along the pump cylinder (8), the piston head (10) is provided with a suction hole (11) which vertically penetrates through the upper surface and the lower surface of the piston head (10), and the suction hole (11) is internally provided with a suction one-way valve which is used for controlling fluid to flow in a one-way mode from the upper surface to the lower surface of the piston head (10); the piston head (10) is connected with the upper end of a lifting rod (12), the lower end of the lifting rod (12) penetrates through a rod hole in the bottom of the tank body (1) and is in sliding fit with the driving disc (5) through a sliding assembly; the sliding track of the sliding fit formed between the lower end of the lifting rod (12) and the driving disk (5) is an annular track concentric with the driving disk (5).

6. The method for preparing pink chromogen with high temperature resistance according to claim 5, wherein the method comprises the following steps: the lower extreme of suction hole (11) is the hopper form that falls, inhale check valve including wearing to establish valve rod (13) in suction hole (11), the bilateral symmetry of the upper end of valve rod (13) is provided with two pin (14), and the lower extreme of valve rod (13) is provided with the circular cone frustum shape end cap (15) with suction hole (11) lower extreme looks adaptation.

7. The method for preparing pink chromogen with high temperature resistance according to claim 6, wherein the method comprises the following steps: an annular first sealing ring (16) is arranged between the lifting rod (12) and the side wall of the rod hole.

8. The method for preparing pink chromogen with high temperature resistance according to claim 7, wherein the method comprises the following steps: the shaft seat (7) is in a cone frustum shape, a shaft hole matched with the driving shaft (6) is formed in the center of the shaft seat (7), and a plurality of annular second sealing rings (17) are arranged between the driving shaft (6) and the side wall of the shaft hole; a circle of annular blocking edge (18) is arranged outside the driving shaft (6) above the shaft seat (7), and a sealing cap (19) is sleeved outside the driving shaft (6) above the blocking edge (18); the sealing cap (19) is tightly propped against the blocking edge (18) through a clamping nut (20), and the bottom of the sealing cap (19) is provided with a skirt (21) matched with the outer side wall of the shaft seat (7).

9. The method for preparing pink chromogen with high temperature resistance according to claim 8, wherein the method comprises the following steps: the driving disc (5) comprises an upper disc body (22) and a lower disc body (23), and the upper disc body (22) is connected with the lower disc body (23) through a fastening bolt (24); the driving shaft (6) is fixedly arranged at the center of the upper surface of the upper disc body (22); a circle of annular sliding groove (25) with a groove cavity with a convex section is formed in the position, close to the edge, of the upper surface of the driving disc (5), and the sliding groove (25) is formed by encircling of an upper disc body (22) and a lower disc body (23); the top surface and the bottom surface of the sliding groove (25) are embedded with annular fixed magnetic strips (26) along the circumferential direction of the sliding groove (25);

the sliding assembly comprises a sliding block (27) arranged in a groove cavity of the sliding groove (25) and a connecting rod (28) fixedly arranged on the upper surface of the sliding block (27); a fixed magnetic sheet (29) matched with the fixed magnetic strip (26) is fixedly embedded on the sliding block (27), and the sliding block (27) is suspended in the sliding groove (25) through repulsive force between the fixed magnetic sheet (29) and the fixed magnetic strip (26); the upper end of the connecting rod (28) is connected with the lifting rod (12) through a universal ball head (30).

10. The method for preparing pink chromogen with high temperature resistance according to the claim +, which is characterized in that: the stirring assembly comprises a transverse stirring rod (31) arranged on a section of side wall of the main shaft (3) close to the bottom of the tank body (1) and spiral flow pushing teeth (32) arranged on a section of side wall of the main shaft (3) above the stirring rod (31);

a plurality of stirring blades are uniformly arranged on the stirring rod (31), and turbulent holes are formed in the stirring blades; the spiral flow pushing teeth (32) extend vertically; a central hole is formed in the main shaft (3) along the length direction of the main shaft (3), and a side hole communicated with the central hole is formed in the side surface of the main shaft (3); the upper portion of main shaft (3) still overlaps outward and is equipped with and rotates cover (33), the inner chamber that rotates cover (33) is through a large size side opening and centre bore intercommunication, and one side of rotating cover (33) is passed through steam pipeline (34) and is connected with steam heater (34).

Technical Field

The invention relates to the technical field of pigments, and particularly relates to a peach red chromogen with high temperature resistance and a preparation method thereof.

Background

The pigment is widely used as a dyeing material and is generally used in various industries such as paint, printing and dyeing, plastic products, papermaking, rubber products, ceramics and the like. In recent years, with the shift of high speed toward high quality in industrial production, the market demands for various properties of pigments have been increasing. The pigment violet is used as a basic color type in the pigment, is a basis for compounding color pastes of other color types, is the same as the pigment red, and is also used as two most common color type raw materials in the ink.

In recent years, I developed a series of pigment violet using basic red as a basic colorant through years of research and development, and through a plurality of iterations on the basis, a set of relatively stable and complete pigment violet formula and related preparation process flow have been formed, and good market feedback has been obtained. The method specifically comprises the steps of dissolving alkaline red in hot water, mixing the alkaline red with a polybasic acid solution, mixing the alkaline red and the polybasic acid solution for carrying out laking treatment, and carrying out post-treatment steps of washing, drying, crushing and the like to obtain the pigment.

The pigment red as an organic pigment has various excellent characteristics of strong tinting strength, good color rendering, acid resistance, alkali resistance, oil resistance, water resistance and the like, but is limited by the characteristics of the organic pigment, and the high temperature resistance of the pigment red is relatively poor. It is known that in the coloring process of resins, rubbers, printing inks, etc., the processing temperature is often high in order to meet the requirements of heat fusion, molding, etc. However, if the temperature is too high, the color development degree of the pigment is poor, and the overall effect of the pigment is affected, and the color change index under various high-temperature conditions is usually taken as a measure index of the high-temperature resistance. Meanwhile, in some special use occasions, the consideration of other factors such as environmental protection and pollution is taken into account, and the coloring problem of the product cannot be solved simply by replacing the organic pigment through the stepless pigment.

Meanwhile, in the aspect of production and preparation processes, as the alkaline red needs to be dissolved in hot water, the time consumed for dissolving is long when the traditional dissolving tank is adopted for dissolving operation, and meanwhile, due to the problem of incomplete dissolving, the subsequent production and processing can be influenced.

Disclosure of Invention

The invention aims to provide a peach red chromogen with high temperature resistance, and the prepared pigment red has excellent high temperature resistance and better coloring degree.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a peach red chromogen with high temperature resistance comprises the following raw materials in parts by weight:

15-20 parts of basic red;

2-5 parts of glacial acetic acid;

3-6 parts of disodium hydrogen phosphate;

8-12 parts of sodium tungstate;

18-20 parts of sodium molybdate;

26-28 parts of hydrochloric acid;

2-4 parts of a temperature-resistant modifier;

the temperature-resistant modifier is formed by mixing nano-scale titanium dioxide and nano-scale kaolin according to the weight ratio of 2: 1.

Preferably, the feed comprises the following raw materials in parts by weight:

17 parts of basic red;

5 parts of glacial acetic acid;

5 parts of disodium hydrogen phosphate;

10 parts of sodium tungstate;

18 parts of sodium molybdate;

26 parts of hydrochloric acid;

3 parts of a temperature-resistant modifier.

Preferably, the method comprises the following steps:

s1, stirring the basic red in water at the temperature of 80-90 ℃ until the basic red is completely dissolved to obtain a water solution A;

s2, stirring sodium tungstate, sodium molybdate and disodium hydrogen phosphate in water until the sodium tungstate, the sodium molybdate and the disodium hydrogen phosphate are completely dissolved to obtain a water solution B;

s3, mixing the aqueous solution A and the aqueous solution B, adding the residual materials, keeping the temperature at 45-55 ℃, keeping the stirring speed at 50-55 r/min, and stirring and mixing for 30-60min to obtain a pigment suspension;

and S4, filtering, washing, drying and crushing the pigment suspension to obtain the finished raw material product.

Preferably, the steps S1, S2 and S3 are all performed in a pump-blowing anti-settling stirring tank, the pump-blowing anti-settling stirring tank comprises a tank body, a discharge port is formed in the bottom of one side of the tank body, a stirring mechanism is arranged in the tank body, and an anti-settling mechanism is arranged at the bottom of the tank body;

the stirring mechanism comprises a main shaft vertically arranged in the center of the tank body and a stirring assembly arranged on the main shaft; the upper end of the main shaft is connected with a stirring motor fixedly arranged at the top of the tank body, and the lower end of the main shaft is in transmission connection with the bottom sinking prevention mechanism.

Preferably, the anti-sinking mechanism comprises a driving disc obliquely arranged below the main shaft, a driving shaft is arranged at the center of the upper surface of the driving disc, and the driving shaft penetrates through a shaft seat at the bottom of the tank body, extends into the tank body and is connected with a flange of the main shaft;

the anti-sinking mechanism also comprises a plurality of groups of pumping assemblies, and the groups of pumping assemblies are uniformly arranged on the inner surface of the bottom of the tank body in an annular shape around the main shaft; the pump blowing assembly comprises a circular pump barrel with an opening at the top, a plurality of bottom blowing heads with fan-shaped flow channels are uniformly arranged on the inner surface of the bottom of the tank body on the periphery of the pump barrel by taking the pump barrel as the center, the bottom blowing heads are communicated with the pump barrel, and bottom blowing check valves which are communicated in a one-way mode from the inside to the outside of the pump barrel are arranged on the bottom blowing heads; the pump cylinder is also internally provided with a piston head which is matched with the pump cylinder and can slide up and down along the pump cylinder, the piston head is provided with a suction hole which vertically penetrates through the upper surface and the lower surface of the piston head, and a suction one-way valve used for controlling the unidirectional flow of fluid from the upper surface to the lower surface of the piston head is arranged in the suction hole; the piston head is connected with the upper end of the lifting rod, and the lower end of the lifting rod penetrates through the rod hole at the bottom of the tank body and is in sliding fit with the driving disc through the sliding assembly; the sliding track of the sliding fit formed between the lower end of the lifting rod and the driving disk is an annular track concentric with the driving disk.

Preferably, the lower extreme of suction hole is the funnel form that falls, the check valve that inhales includes the valve rod of wearing to establish in the suction hole, the bilateral symmetry of the upper end of valve rod is provided with two pin, and the lower extreme of valve rod is provided with the circular cone platform shape end cap with suction hole lower extreme looks adaptation.

Preferably, an annular first sealing ring is arranged between the lifting rod and the side wall of the rod hole.

Preferably, the shaft seat is in a cone frustum shape, a shaft hole matched with the driving shaft is formed in the center of the shaft seat, and a plurality of annular second sealing rings are arranged between the driving shaft and the side wall of the shaft hole; a circle of annular blocking edge is arranged outside the driving shaft above the shaft seat, and a sealing cap is sleeved outside the driving shaft above the blocking edge; the sealing cap is tightly propped against the blocking edge through the clamping nut, and the bottom of the sealing cap is provided with a skirt matched with the outer side wall of the shaft seat.

Preferably, the driving disc comprises an upper disc body and a lower disc body, and the upper disc body is connected with the lower disc body through a fastening bolt; the driving shaft is fixedly arranged in the center of the upper surface of the upper disc body; a circle of annular sliding groove with a groove cavity with a convex section is arranged on the upper surface of the driving disc close to the edge, and the sliding groove is formed by enclosing an upper disc body and a lower disc body; the top surface and the bottom surface of the sliding groove are embedded with annular fixed magnetic strips along the circumferential direction of the sliding groove;

the sliding assembly comprises a sliding block arranged in a groove cavity of the sliding groove and a connecting rod fixedly arranged on the upper surface of the sliding block; a fixed magnetic sheet matched with the fixed magnetic strip is fixedly embedded on the sliding block, and the sliding block is suspended in the sliding groove through the repulsive force between the fixed magnetic sheet and the fixed magnetic strip; the upper end of the connecting rod is connected with the lifting rod through a universal ball head.

Preferably, the stirring assembly comprises a transverse stirring rod arranged on a section of side wall of the main shaft close to the bottom of the tank body and a spiral flow pushing tooth arranged on a section of side wall of the main shaft above the stirring rod;

a plurality of stirring blades are uniformly arranged on the stirring rod, and turbulent holes are formed in the stirring blades; the spiral flow pushing teeth extend vertically; a central hole is formed in the main shaft along the length direction of the main shaft, and a side hole communicated with the central hole is formed in the side surface of the main shaft; the upper portion of the main shaft is further sleeved with a rotating sleeve, an inner cavity of the rotating sleeve is communicated with the central hole through a large-size side hole, and one side of the rotating sleeve is connected with a steam heater through a steam pipeline.

The beneficial effects of the invention are concentrated and expressed as follows: through the addition of high temperature resistant auxiliary agent, carry out inorganic hybridization modification to pigment to nanometer titanium dioxide is as pigment granule package nuclear, makes the heat stability of pigment obtain very big promotion, and nanometer titanium dioxide particle diameter is little, the dispersion is even, is convenient for more form package nuclear, makes connection structure more stable between the pigment molecule, and the pigment of production both possesses characteristics such as inorganic pigment is high temperature resistant, resistant light, possesses the bright color and luster of organic pigment again, the characteristic that the tinctorial strength is strong. Meanwhile, the characteristic of strong photocatalysis of the nano titanium dioxide is effectively improved by doping the nano kaolin as a shielding agent, so that the whole light resistance is better. In addition, the invention preferably adopts dissolving and stirring equipment, can realize the high-efficiency dissolution of all raw materials, has high solubility, improves the overall processing efficiency of the pigment, shortens the processing time, and solves the problem of incomplete dissolution caused by the sinking of the raw materials.

Drawings

FIG. 1 is a schematic structural view of an anti-settling agitator tank used in the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a top view of the pump-blow assembly;

FIG. 5 is a schematic structural view of a drive plate;

fig. 6 is an enlarged view of the portion C in fig. 5.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be explained in detail with reference to examples.

The invention aims to prepare a peach red chromogen with high temperature resistance, and the formula of the pigment peach red chromogen is as follows: 15-20 parts of basic red; 2-5 parts of glacial acetic acid; 3-6 parts of disodium hydrogen phosphate; 8-12 parts of sodium tungstate; 18-20 parts of sodium molybdate; 2-4 parts of a temperature-resistant modifier and 26-28 parts of hydrochloric acid; the invention has the biggest difference that a temperature-resistant modifier is introduced on the basis of the original formula to perform hybrid modification treatment on the pigment, the pigment is subjected to inorganic hybrid modification by adding a high-temperature-resistant auxiliary agent, and the nano-scale titanium dioxide is used as a pigment particle core, so that the thermal stability of the pigment is greatly improved, the nano-scale titanium dioxide has small particle size and uniform dispersion, the core is more conveniently formed, the connecting structure between pigment molecules is more stable, and the produced pigment has the characteristics of high temperature resistance, light resistance and the like of the inorganic pigment, and also has the characteristics of bright color and strong tinting strength of the organic pigment. Meanwhile, the characteristic of strong photocatalysis of the nano titanium dioxide is effectively improved by doping the nano kaolin as a shielding agent, so that the whole light resistance is better. The temperature-resistant modifier is formed by mixing nano-scale titanium dioxide and nano-scale kaolin according to the weight ratio of 2: 1.

The pigment red is prepared by the following steps:

s1, stirring the basic red in water at the temperature of 80-90 ℃ until the basic red is completely dissolved to obtain a water solution A;

s2, stirring sodium tungstate, sodium molybdate and disodium hydrogen phosphate in water until the sodium tungstate, the sodium molybdate and the disodium hydrogen phosphate are completely dissolved to obtain a water solution B;

s3, mixing the aqueous solution A and the aqueous solution B, adding the residual materials, keeping the temperature at 45-55 ℃, keeping the stirring speed at 50-55 r/min, and stirring and mixing for 30-60min to obtain a pigment suspension; during the stirring process, the stirring speed should be kept stable, so as to avoid the phenomenon of excessively high or excessively low rotating speed, and the excessively high or excessively low stirring can cause the influence on the color lake due to the excessively high or excessively low shearing force.

And S4, filtering, washing, drying and crushing the pigment suspension to obtain the finished raw material product.

The high temperature resistance of the invention under different components will be analyzed by combining with the examples below to show the compatibility system of each raw material of the invention more clearly.

The high temperature resistance was evaluated by testing the high temperature resistance of each of the examples and comparative examples to withstand 30 minutes at different temperatures and observing the color change.

According to the table, the total high-temperature resistance is greatly improved after the high-temperature resistant auxiliary agent is added, the color does not change at the temperature of 200 ℃, and the coloring requirement in the processing of most of resin and rubber can be met. Under the condition that the high-temperature resistant auxiliary agent is not added, the high-temperature resistant critical point is about 160 ℃, and the temperature can be increased to about 240 ℃ after the high-temperature resistant auxiliary agent is added.

In the steps S1, S2, and S3, since a large amount of dissolution and stirring are involved, in order to improve the stirring effect, the dissolution speed and the mixing speed are increased, and the solid raw material is prevented from settling. The invention also specially designs a pump-blowing anti-settling stirring tank for efficient dissolution and mixing, and the pump-blowing anti-settling stirring tank is applied to the step S1-3 of the invention, so that the overall processing efficiency can be effectively improved, and the details are shown in the following and in figures 1-6.

The pump-blowing type anti-sinking stirring tank comprises a tank body 1, wherein a circular plastic tank with an open top can be generally selected from the tank body 1 for reducing the cost, a supporting frame for mounting a stirring motor 4 is arranged at the top of the tank body 1, and bottom feet can be arranged at the bottom of the tank body as well, so that the pump-blowing type anti-sinking stirring tank is the same as a conventional stirring tank and is not repeated. The bottom of one side of the tank body 1 is provided with a discharge port 2, the tank body 1 is internally provided with a stirring mechanism, and the stirring mechanism comprises a main shaft 3 vertically arranged at the center of the tank body 1 and a stirring assembly arranged on the main shaft 3. The stirring assembly may be embodied in many forms, and as shown in fig. 1, it may comprise a transverse stirring rod 31 disposed on a section of the side wall of the main shaft 3 near the bottom of the tank 1. Set up stirring vane on the puddler 31, main shaft 3 is at the pivoted in-process, and drive puddler 31 rotates, and then drives stirring vane and rotate, realizes the stirring. The specific shape and size of the stirring blade can be designed according to the size of the tank body 1. Turbulence holes may also be provided in the mixing blades in order to promote the longitudinal plug flow and turbulence effect. Meanwhile, a section of the side wall of the main shaft 3 above the stirring rod 31 can be provided with spiral impelling teeth 32, and the spiral impelling teeth 32 extend vertically.

As the solution needs to be heated and stirred and the solution needs to be stirred while being kept warm, a water jacket can be arranged outside the tank body 1 and is used for heating. Heating mechanisms such as an electric heating plate and a steam heat exchange pipe can be arranged in the tank body 1, but in order to reduce mutual interference between stirring and heating, the heating mechanism can be better. A center hole is formed in the main shaft 3 along the length direction of the main shaft 3, and a side hole communicated with the center hole is formed in the side face of the main shaft 3. The upper portion of main shaft 3 still overlaps outward and is equipped with and rotates cover 33, the inner chamber of rotating cover 33 is through a large-size side opening and centre bore intercommunication, the one side of rotating cover 33 is connected with steam heater 34 through steam pipe 34. The high-temperature steam generated by the steam heater 34 can enter the central hole of the main shaft 3 through the rotating sleeve 33 and the large-sized side holes in sequence, and is finally dispersed and discharged from each side hole. The liquid is directly heated by high-temperature steam, and aeration stirring can be realized by the high-temperature steam on the basis of heating.

Of course, the biggest difference of the pump-blowing type anti-bottom-sinking agitator tank is that the bottom of the tank body 1 is provided with an anti-bottom-sinking mechanism, the upper end of the main shaft 3 is connected with the agitator motor 4 fixedly arranged on the top of the tank body 1, and the lower end of the main shaft 3 is in transmission connection with the anti-bottom-sinking mechanism. The main shaft 3 and the anti-sinking mechanism are simultaneously driven by the stirring motor 4. As will be understood, the anti-settling mechanism mainly has the function of preventing solid raw materials from depositing on the bottom of the tank body 1 before the solid raw materials are not completely dissolved. The specific structure of the anti-sinking mechanism is shown in fig. 1, the anti-sinking mechanism comprises a driving disc 5 obliquely arranged below a main shaft 3, a driving shaft 6 is arranged at the center of the upper surface of the driving disc 5, and the driving shaft 6 penetrates through a shaft seat 7 at the bottom of a tank body 1 to extend into the tank body 1 and is in flange connection with the main shaft 3.

Since the drive shaft 6 needs to pass through the shaft seat 7, in order to ensure an effective seal there. As shown in fig. 3, the shaft seat 7 is in a truncated cone shape, a shaft hole matched with the driving shaft 6 is formed in the center of the shaft seat 7, a plurality of annular second sealing rings 17 are arranged between the driving shaft 6 and the side wall of the shaft hole, and the number of the second sealing rings 17 is three as shown in the figure. A ring of annular blocking edges 18 are arranged outside the driving shaft 6 above the shaft seat 7, and a sealing cap 19 is sleeved outside the driving shaft 6 above the blocking edges 18. The sealing cap 19 is tightly propped against the blocking edge 18 through a clamping nut 20, and a skirt 21 matched with the outer side wall of the shaft seat 7 is arranged at the bottom of the sealing cap 19. During use, when the driving shaft 6 rotates, the skirt 21 of the sealing cap 19 is pressed and tightly abuts against the side wall of the shaft seat 7, and sealing is ensured. And the second sealing ring 17 is sealed between the shaft seat 7 and the driving shaft 6, even if a small amount of air is discharged upwards through the second sealing ring 17, the air can be deposited in a miniature sealing cavity formed at the bottom of the sealing cap 19, convection exchange cannot be formed between the air and the liquid in the tank body 1, and the sealing performance is effectively ensured. The clamp nut 20 can always keep pressing the seal cap 18 to prevent it from moving upward.

The bottom sinking prevention mechanism of the invention can achieve the plug flow effect on the bottom sediment by pumping and blowing the bottom liquid in the tank body 1, thereby preventing the bottom from sinking. Referring to fig. 1, 2 and 4, the anti-settling mechanism further comprises a plurality of groups of pumping assemblies, and the groups of pumping assemblies are uniformly arranged on the inner surface of the bottom of the tank body 1 in an annular manner around the main shaft 3. As shown in fig. 4, the pump-blowing assemblies are provided with 4 sets, although more may be provided. The pump blows the subassembly and includes open-top's circular shape pump barrel 8, use pump barrel 8 evenly to be provided with a plurality of end of having fan-shaped runner and blow head 9 as the center on the internal surface of jar body 1 bottom of 8 week sides of pump barrel, blow head 9 and pump barrel 8 intercommunication at the end, and blow at the end and be provided with on the head 9 by the pump barrel 8 in to the outer one-way bottom-blowing check valve that communicates. The fan-shaped bottom blowing head 9 has a larger bottom blowing angle, so that the bottom blowing coverage is larger.

The pump cylinder 8 is also internally provided with a piston head 10 which is matched with the pump cylinder 8 and can slide up and down along the pump cylinder 8, the piston head 10 is provided with a suction hole 11 which vertically penetrates through the upper surface and the lower surface of the piston head 10, and the suction hole 11 is internally provided with a suction one-way valve which is used for controlling fluid to flow from the upper surface to the lower surface of the piston head 10 in a one-way manner. The simplest and most efficient suction one-way valve is shown in fig. 2, the lower end of the suction hole 11 is in an inverted funnel shape, the suction one-way valve comprises a valve rod 13 penetrating the suction hole 11, two stop levers 14 are symmetrically arranged on two sides of the upper end of the valve rod 13, and a cone frustum shaped plug 15 matched with the lower end of the suction hole 11 is arranged at the lower end of the valve rod 13. When the piston head 10 moves upwards, the valve rod 13 and the plug 15 move downwards in the suction hole 11 integrally, the stop lever 14 abuts against the upper surface of the piston head 10, and liquid flow can flow into the suction hole 11 from the upper end, flow out through a gap between the plug 15 and the side wall of the lower end of the suction hole 11 and enter the lower part of the piston head 10. When the piston head 10 moves downwards, the valve rod 13 and the plug 15 move upwards in the suction hole 11 as a whole under the influence of extrusion force, the plug 15 blocks the suction hole 11, and at the moment, liquid flow can only be blown out from the bottom of the tank body 1 through the bottom blowing head 9, so that the blowing, the sloshing and the lifting of the sinking bottom raw material are realized.

In order to drive the piston head 10, the piston head 10 is connected with the upper end of a lifting rod 12, the lower end of the lifting rod 12 penetrates through a rod hole at the bottom of the tank body 1, and forms sliding fit with the driving disk 5 through a sliding assembly. The sliding track of the sliding fit formed between the lower end of the lifting rod 12 and the driving disk 5 is an annular track concentric with the driving disk 5. Because the driving disk 5 is arranged obliquely, in the process of rotating along with the main shaft 3, the upper surface of the driving disk continuously drives the lifting rods 12 to alternately lift, so that the piston heads 10 alternately lift. An annular first sealing ring 16 is arranged between the lifting rod 12 and the side wall of the rod hole to form a seal.

In general, the stirring tank of the invention is driven by the stirring motor 4, and the main shaft 3 can drive the stirring rod 31 to stir and drive the spiral flow pushing teeth 32 to push flow longitudinally. Simultaneously, because main shaft 3 can drive driving-disc 5 through drive shaft 6 and rotate, it can also drive the bottom blowing subassembly and produce the pump and blow, and then better improvement material is in the dissolving of jar body 1, stirring, mixing speed and the degree of consistency, very big improvement the production efficiency of pigment.

Of course, in consideration of the particular connection relationship between the lifter 12 and the driving plate 5, in order to ensure stable sliding of the lifter 12 on the driving plate 5 and to improve the convenience of assembly. As shown in fig. 5 and 6, the driving disk 5 of the present invention includes an upper disk body 22 and a lower disk body 23, and the upper disk body 22 and the lower disk body 23 are connected by fastening bolts 24. The driving shaft 6 is fixedly provided at the center of the upper surface of the upper disc 22. A circle of annular sliding groove 25 with a convex groove cavity cross section is arranged on the upper surface of the driving disc 5 close to the edge, and the sliding groove 25 is enclosed by an upper disc body 22 and a lower disc body 23. The top surface and the bottom surface of the sliding groove 25 are embedded with annular fixed magnetic strips 26 along the circumferential direction of the sliding groove 25. The sliding assembly comprises a sliding block 27 arranged in the groove cavity of the sliding groove 25 and a connecting rod 28 fixedly arranged on the upper surface of the sliding block 27. The sliding block 27 is fixedly embedded with a fixed magnetic sheet 29 matched with the fixed magnetic strip 26, and the sliding block 27 is suspended in the sliding groove 25 through the repulsive force between the fixed magnetic sheet 29 and the fixed magnetic strip 26. The upper end of the connecting rod 28 is connected with the lifting rod 12 through a universal ball head 30. With this structure, the slider 27 can be suspended in the sliding groove 25 by the repulsive force of the fixed magnetic sheet 29 and the fixed magnetic stripe 26, thereby reducing the sliding friction force and improving the smoothness of the movement thereof.