CN211492263U - Mixing arrangement of hemihydrate gypsum and additive - Google Patents
Mixing arrangement of hemihydrate gypsum and additive Download PDFInfo
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- CN211492263U CN211492263U CN201922061495.XU CN201922061495U CN211492263U CN 211492263 U CN211492263 U CN 211492263U CN 201922061495 U CN201922061495 U CN 201922061495U CN 211492263 U CN211492263 U CN 211492263U
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Abstract
The utility model provides a mixing arrangement of hemihydrate gypsum and additive. The device comprises an additive bin, an additive metering device, additive spiral conveying equipment, an additive mixer, a gypsum feeding bin, gypsum spiral conveying equipment with the metering device, a gypsum powder-additive primary mixer and a mixer, wherein the additive metering device is arranged at the outlet position of a control valve of the additive bin, the additive spiral conveying equipment is arranged below the additive bin and is connected with the additive mixer, the gypsum spiral conveying equipment with the metering device is arranged below the gypsum feeding bin and is connected with the gypsum feeding bin, the additive mixer is connected with the gypsum powder-additive primary mixer, the gypsum powder-additive primary mixer is connected with the mixer, and the gypsum spiral conveying equipment with the metering device is connected with the gypsum powder-additive primary mixer and the mixer. The mixing device is monitored in a full scale, the additive amount is accurate, and the additive and the gypsum powder are fully and thoroughly fused.
Description
Technical Field
The utility model belongs to gypsum production facility field, concretely relates to mixing arrangement of hemihydrate gypsum and additive.
Background
Gypsum is a building material with a long history of application, and is arranged as three main pillars in an inorganic cementing material together with lime and cement. It has the advantages of light weight, fast condensation, good fire resistance, small heat and sound transmission, high construction efficiency, harmlessness to human body and the like, and is an energy-saving green material advocating development. The application of the gypsum material is generally through the hydration hardening of the hemihydrate gypsum to give a dihydrate gypsum product. The hemihydrate gypsum has small water demand and high strength after hardening, and is widely applied to a plurality of fields of machine manufacturing, precision casting, automobiles, ceramics, buildings, industrial art, medical treatment and the like. With the increasing requirements of people on the strength performance of materials, the use value of gypsum materials can be further increased by carrying out strength modification on the semi-hydrated gypsum.
In the field of hemihydrate gypsum processing, hemihydrate gypsum powder product performance is generally improved by the addition of additives, including set accelerators, water reducers and mold inhibitors. The additive has the characteristics of multiple types of additives, small addition ratio and the like. The existing additive is added in two ways: 1. quantitatively adding a mixing reamer through a reamer, and directly entering a mixer after stirring with dry materials; 2. and after the liquid water reducing agent is weighed, adding the liquid water reducing agent into a pulping tank in a calculated proportion, and after stirring, feeding the liquid water reducing agent and the wet material into a mixer to produce and manufacture downstream products. The main problems of the above two ways are: quantitative addition is carried out through a reamer, the addition process is not monitored, the addition amount is not accurate enough, the supply of additives is insufficient, the additives and the gypsum are not uniformly stirred, the gypsum and the additives are not thoroughly crushed, repeated work is required, time is consumed, the size is not uniform, the production efficiency is low, and the volume of the crushed materials is large; and add through the pulping tank, go on at the in-process of making the gypsum product with the gesso, because the deviation of adding water capacity and weighing in every jar can both cause not accurate enough of additive amount, complex operation, easy caking in the gypsum leads to the quality of end product goods unstable, and some positions are because of the too much fracture of additive, and some positions are because of the too little intensity grade of additive not up to standard etc..
CN204263363U discloses a special hybrid system of ardealite retarder, includes ardealite feeding bin, measurement belt feeder, lime storehouse, lime measurement reamer, feeding conveyer, mixer, gypsum measurement reamer, gypsum storehouse and additive feed bin, the measurement belt feeder sets up in ardealite feeding bin below, lime measurement reamer sets up in lime storehouse below, the measurement belt feeder is connected with feeding conveyer. This hybrid system addition process is not monitored, and the additive amount is not accurate enough, can cause the additive to supply inadequately, and one-step addition method leads to additive and gypsum stirring inhomogeneous moreover, has aggravated the required energy consumption of stirring greatly.
Therefore, it is very important to develop a device capable of improving the mixing uniformity of the hemihydrate gypsum and the additive in order to solve the problems of the prior art that the variety of the additive is large and the adding proportion of the additive is very small.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a mixing arrangement of hemihydrate gypsum and additive, the control is called entirely to the device process, and continuous ration adds, improves the additive amount precision, additive and gypsum stirring, fusion are abundant thorough, and the production efficiency height power consumption is low.
In order to achieve the purpose of the utility model, the utility model adopts the following technical proposal:
the utility model provides a mixing arrangement of hemihydrate gypsum and additive, mixing arrangement includes additive feed bin 1, additive metering device 2, additive screw conveyor 3, additive blender 4, gypsum feed bin 5, the gypsum screw conveyor 6 of taking metering device, the elementary blender 7 of gesso-additive and mixes machine 8, additive metering device 2 sets up in the exit position of additive feed bin 1 control flap, additive screw conveyor 3 sets up in additive feed bin 1 below and is connected with additive blender 4, the gypsum screw conveyor 6 of taking metering device sets up in gypsum feed bin 5 below and is connected with gypsum feed bin 5, additive blender 4 is connected with the elementary blender 7 of gesso-additive, the elementary blender 7 of gesso-additive is connected with mixing machine 8, the gypsum screw conveying device 6 with the metering device is connected with a gypsum powder-additive primary mixer 7 and a mixer 8.
The utility model discloses in, different additives are stored in different additive feed bins 1 to through the accurate measurement back of additive metering device 2, send into additive blender 4 mixing stirring by additive spiral delivery mechanism 3, obtain the composite additive. The mixed composite additive is discharged from the additive mixer 4 and added to the landplaster-additive primary mixer 7. Gypsum is discharged from the gypsum feed bin 5, and a small portion of gypsum powder, which is 5 to 20% by mass, for example, 5%, 10%, 15%, 20% by mass or the like, of the total mass of gypsum discharged from the gypsum feed bin 4, is discharged through an outlet at one end of a gypsum screw conveyor 6 with a metering device and added to a gypsum powder-additive primary mixer 7. A small part of discharged gypsum and the composite additive are uniformly scattered in a gypsum powder-additive primary mixer 7 to obtain compound gypsum, and the compound gypsum is added into a mixer 8. The mixer 8 may be a mixer having only a mixing function, or may be a ball mill having a mixing and grinding function. And simultaneously discharging most of the residual gypsum through an outlet at the other end of the gypsum spiral conveying equipment 6 with a metering device, adding the discharged gypsum into the mixer 8, and uniformly mixing the discharged gypsum with the compound gypsum added into the mixer 8 to obtain a final product.
The utility model discloses in, device process is the control of full title, and the ration is added to make the additive amount precision obtain improving, make additive and gypsum stir more evenly, smash more fully thoroughly. The flexural strength and the compressive strength of the finally obtained semi-hydrated gypsum product are greatly improved, and the final setting time is shortened. Wherein the additive comprises one or at least two of a coagulant, a water reducing agent or a mildew preventive.
The utility model discloses in additive metering device 2 is connected through flexible material with 1 control flap in additive feed bin, additive metering device 2 includes feeding control valve 115, feed inlet 116, hopper 114, dust collection mouth 118, supplied materials control mechanism 113, spiral feed mechanism 112, weighing machine constructs 111 and spiral feed mechanism discharge gate 117, material control valve 115 is connected with feed inlet 116, feed inlet 116 is connected with hopper 114, dust collection mouth 118 sets up in hopper 114 top and is connected with it, supplied materials control mechanism 113 sets up in hopper 114 below and is connected with spiral feed mechanism 112, weighing machine constructs 111 and sets up in spiral feed mechanism 112 below and is connected with it, spiral feed mechanism discharge gate 117 is connected with spiral feed mechanism 112.
Wherein, the flexible material is flexible material: rubber hose, silica gel hose or metal hose, etc. as flexible connecting material.
The utility model discloses in, the utility model discloses in additive metering device 2 sets up in the control flap exit position of additive feed bin to be connected through flexible material with the valve on the additive feed bin unloading pipeline, metering device is equipped with weighing machine and constructs, spiral feed mechanism, supplied materials control mechanism, hopper, feeding control valve, feed inlet, spiral feed mechanism discharge gate, the mouth that gathers dust etc. weighs, feed, supplied materials and signal feedback through a plurality of singles, forms cooperative control, realizes the high continuity ejection of compact system of precision. The dust collecting port is connected with various bin dust collectors.
Preferably, the additive storage bins 1 are more than two, and the more than two additive storage bins 1 are connected to the additive spiral conveying equipment 3 side by side. The utility model discloses well additive feed bin number is two at least, and the purpose carries out the ration to different kind additives respectively and adds to further improve each additive amount precision.
Preferably, the gypsum screw conveyer equipment 6 with the metering device is provided with two discharge ports, wherein a first discharge port is arranged at the head end of the screw conveyer equipment close to the feed port of the gypsum screw conveyer equipment 6 with the metering device, and a second discharge port is arranged at the tail end of the screw conveyer equipment far away from the feed port of the gypsum screw conveyer equipment 6 with the metering device.
Preferably, the first discharge opening of the gypsum screw conveyor device 6 with metering device is connected to a gypsum powder-additive primary mixer 7. The gypsum is discharged from the gypsum feeding bin 5, a small part of gypsum is discharged from a discharge port close to the feed port through a gypsum spiral conveying device with a metering device and is added into the gypsum powder-additive primary mixer 7, and a small part of gypsum is discharged from a discharge port close to the feed port and is mixed with the composite additive, so that the small part of gypsum is favorably and thoroughly fused with the small part of additive to form a new whole, and the effect of the composite additive can be fully exerted.
Preferably, the second discharge opening of the gypsum screw conveyor device 6 with metering device is connected with a mixer 8. Through the gypsum screw conveyor equipment second discharge gate of taking metering device most residual gypsum of discharging, add to the mixer, the gesso mixes with a small amount of additive in turn, can further improve the gypsum of most residual at last and compound gypsum mixing dispersion rate to improve production efficiency, reduce the energy consumption.
The utility model discloses in, thereby take metering device's gypsum spiral delivery mechanism 6 is the measurement of the aperture control product feeding and the ejection of compact through automatic signal terminal control feed valve and bleeder valve, confirms the flow.
Preferably, the upper part of the additive storage bin 1 with the metering device is provided with a first dust collecting mechanism 9, the first dust collecting mechanism 9 is connected with the additive storage bin 1, and the collected dust, namely the dust generated by the additive, passes through a pipeline and is controlled by an air locking valve to return to the additive storage bin 1.
Preferably, a second dust collecting mechanism 10 is arranged at the upper part of the additive mixer 4, the second dust collecting mechanism 10 is connected with the additive mixer 4, and the collected dust, namely the dust generated by mixing the additives, passes through a pipeline and is controlled by an air locking valve to return to the additive mixer 3.
Preferably, a third dust collecting mechanism 11 is arranged at the upper part of the gypsum powder-additive primary mixer 7, the third dust collecting mechanism 11 is connected with the gypsum powder-additive primary mixer 7, and the collected dust is controlled to return to the gypsum powder-additive primary mixer 7 through a pipeline by an air locking valve.
Preferably, mix 8 upper portions of machine and be equipped with four 12 of mechanism of gathering dust, four 12 of mechanism of gathering dust and mix 8 both way junction of machine, four 12 of mechanism of gathering dust still are connected with gypsum feeding bin 5 and the gypsum spiral conveying equipment 6 of taking metering device, four 12 of mechanism of gathering dust still are provided with draught fan 13, four 12 of mechanism of gathering dust are connected with draught fan 13, draught fan 13 is provided with aiutage 14, draught fan 13 is connected with aiutage 14.
The multi-device dust collection device has the advantages that the dust collection is synchronously realized by multiple devices, the structure is simple, the dust collection effect is good, the gypsum powder emission phenomenon is avoided, the pollution to the environment is reduced, and the utilization rate of raw materials and the yield of products are improved. Particularly, after the dust collected by the dust collection mechanism four 12 is mixed with the raised dust of the mixer 8, the gypsum feeding bin 5 and the gypsum spiral conveying equipment 6 with the metering device, the raised dust can finally return to the mixer 8 due to the bidirectional connection of the dust collection mechanism four 12 and the mixer 8, the waste loss of gypsum powder and additives is greatly reduced in the whole process, the utilization rate of the gypsum powder and additives and the yield of products are further improved, and therefore the production cost is reduced.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a mixing arrangement of gypsum and additive hemihydrate, the device process is the control entirely, and the ration is added, improves the additive amount precision, and additive and gypsum are smashed fully thoroughly, gypsum and additive mixed dispersion of hemihydrate are even to improve production efficiency, reduce the energy consumption. The multi-device dust collection device has the advantages that the dust collection is synchronously realized by multiple devices, the structure is simple, the dust collection effect is good, the gypsum powder emission phenomenon is avoided, and the pollution to the environment is reduced.
Drawings
FIG. 1 is a diagram of a mixing apparatus for hemihydrate gypsum and additives.
Wherein, 1 is an additive bin, 2 is an additive metering device, 3 is an additive spiral conveying device, 4 is an additive mixer, 5 is a gypsum feeding bin, 6 is a gypsum spiral conveying device with a metering device, 7 is a gypsum powder-additive primary mixer, 8 is a mixer, 9 is a dust collecting mechanism of the additive bin, 10 is a dust collecting mechanism of the additive mixer, 11 is a dust collecting mechanism of a scattering machine, and 12 is a dust collecting mechanism of the mixer.
Fig. 2 is a schematic view of the additive metering device 2.
Wherein 111 is a weighing mechanism, 112 is a spiral feeding mechanism, 113 is an incoming material control mechanism, 114 is a hopper, 115 is a feeding control valve, 116 is a feeding hole, 117 is a discharge hole of the spiral feeding mechanism, and 118 is a dust collecting hole.
Detailed Description
The technical solution of the present invention will be further explained by the following embodiments. It should be understood by those skilled in the art that the described embodiments are merely provided to assist in understanding the present invention and should not be construed as specifically limiting the present invention.
Example 1
In this embodiment, the device is adopted, the mixing device comprises an additive bin 1, an additive metering device 2, an additive spiral conveying device 3, an additive mixer 4, a gypsum feeding bin 5, a gypsum spiral conveying device 6 with a metering device, a gypsum powder-additive primary mixer 7 and a mixer 8, the additive metering device 2 is arranged at the outlet position of a control valve of the additive bin 1, the additive spiral conveying device 3 is arranged below the additive bin 1 and connected with the additive mixer 4, the gypsum spiral conveying device 6 with a metering device is arranged below the gypsum feeding bin 5 and connected with the gypsum feeding bin 5, the additive mixer 4 is connected with the gypsum powder-additive primary mixer 7, the gypsum powder-additive primary mixer 7 is connected with the mixer 8, the gypsum screw conveying device 6 with the metering device is connected with a gypsum powder-additive primary mixer 7 and a mixer 8.
In this embodiment, the additive storage bins 1 are two, one stores the aluminum potassium sulfate dodecahydrate coagulant, and the other stores the beta naphthalene sulfonic acid water reducing agent. And a first discharge port of the gypsum spiral conveying equipment 6 with the metering device is connected with a gypsum powder-additive primary mixer 7. And a second discharge port of the gypsum spiral conveying equipment 6 with the metering device is connected with a mixer 8. The upper portion of the additive storage bin 1 with the metering device is provided with a first dust collecting mechanism 9, and the first dust collecting mechanism 9 is connected with the additive storage bin 1. And a second dust collecting mechanism 10 is arranged at the upper part of the additive mixer 4, and the second dust collecting mechanism 10 is connected with the additive mixer 4. And a third dust collecting mechanism 11 is arranged at the upper part of the gypsum powder-additive primary mixer 7, and the third dust collecting mechanism 11 is connected with the gypsum powder-additive primary mixer 7. Mix 8 upper portions of machine and be equipped with four 12 of mechanism of gathering dust, four 12 of mechanism of gathering dust and mix 8 both way junction of machine, four 12 of mechanism of gathering dust still are connected with gypsum feeding bin 5 and the gypsum screw conveyor 6 of taking metering device, four 12 of mechanism of gathering dust still are provided with draught fan 13, four 12 of mechanism of gathering dust are connected with draught fan 13, draught fan 13 is provided with aiutage 14, draught fan 13 is connected with aiutage 14.
Additive metering device 2 is connected through flexible material with 1 control flap in additive feed bin, additive metering device 2 includes feeding control valve 115, feed inlet 116, hopper 114, gathers dust mouth 118, supplied materials control mechanism 113, spiral feed mechanism 112, weighing mechanism 111 and spiral feed mechanism discharge gate 117, material control valve 115 is connected with feed inlet 116, feed inlet 116 is connected with hopper 114, it sets up in hopper 114 top and is connected with it to gather dust mouth 118, supplied materials control mechanism 113 sets up in hopper 114 below and is connected with spiral feed mechanism 112, weighing mechanism 111 sets up in spiral feed mechanism 112 below and is connected with it, spiral feed mechanism discharge gate 117 is connected with spiral feed mechanism 112.
Selecting semi-hydrated gypsum as citric acid semi-hydrated gypsum powder, and selecting two additives, wherein the additives are 0.2 part of aluminum potassium sulfate dodecahydrate coagulant and 0.3 part of beta naphthalenesulfonic acid water reducer, different additives are accurately metered by an additive metering device 2 and then enter an additive mixer 4 through an additive spiral conveying device 3 to be mixed and stirred to obtain a composite additive, and the mixed composite additive is discharged from the additive mixer 4 and added into a gypsum powder-additive primary mixer 7. 100 parts of gypsum powder is discharged from a gypsum feeding bin 5, and a small part of gypsum is discharged from a discharge port close to a feed port through a gypsum spiral conveying device 6 with a metering device and is added into a gypsum powder-additive primary mixer 7, wherein the mass of the small part of gypsum is 10 percent of the total mass of the gypsum discharged from the gypsum feeding bin 5. A small part of discharged gypsum and the composite additive are uniformly scattered in a gypsum powder-additive primary mixer 7 to obtain compound gypsum, and the compound gypsum is added into a mixer 8. Discharging most of the residual gypsum through a discharge port of the gypsum spiral conveying equipment 6 with a metering device, which is far away from the feed port, adding the discharged gypsum into the mixer 8, and uniformly mixing the discharged gypsum with the compound gypsum added into the mixer 8 to obtain a final product.
Example 2
In this embodiment, the device is adopted, the mixing device comprises an additive bin 1, an additive metering device 2, an additive spiral conveying device 3, an additive mixer 4, a gypsum feeding bin 5, a gypsum spiral conveying device 6 with a metering device, a gypsum powder-additive primary mixer 7 and a mixer 8, the additive metering device 2 is arranged at the outlet position of a control valve of the additive bin 1, the additive spiral conveying device 3 is arranged below the additive bin 1 and connected with the additive mixer 4, the gypsum spiral conveying device 6 with a metering device is arranged below the gypsum feeding bin 5 and connected with the gypsum feeding bin 5, the additive mixer 4 is connected with the gypsum powder-additive primary mixer 7, the gypsum powder-additive primary mixer 7 is connected with the mixer 8, the gypsum screw conveying device 6 with the metering device is connected with a gypsum powder-additive primary mixer 7 and a mixer 8.
The utility model discloses in, additive feed bin 1 is three, one stores aluminium potassium sulfate dodecahydrate coagulation accelerator, one stores beta naphthalenesulfonic acid water-reducing agent, one stores trichloroisocyanuric acid mould inhibitor. And a second discharge port of the gypsum spiral conveying equipment 6 with the metering device is connected with a mixer 8. The upper portion of the additive storage bin 1 with the metering device is provided with a first dust collecting mechanism 9, and the first dust collecting mechanism 9 is connected with the additive storage bin 1. And a second dust collecting mechanism 10 is arranged at the upper part of the additive mixer 4, and the second dust collecting mechanism 10 is connected with the additive mixer 4. And a third dust collecting mechanism 11 is arranged at the upper part of the gypsum powder-additive primary mixer 7, and the third dust collecting mechanism 11 is connected with the gypsum powder-additive primary mixer 7. Mix 8 upper portions of machine and be equipped with four 12 of mechanism of gathering dust, four 12 of mechanism of gathering dust and mix 8 both way junction of machine, four 12 of mechanism of gathering dust still are connected with gypsum feeding bin 5 and the gypsum screw conveyor 6 of taking metering device, four 12 of mechanism of gathering dust still are provided with draught fan 13, four 12 of mechanism of gathering dust are connected with draught fan 13, draught fan 13 is provided with aiutage 14, draught fan 13 is connected with aiutage 14.
Additive metering device 2 is connected through flexible material with 1 control flap in additive feed bin, additive metering device 2 includes feeding control valve 115, feed inlet 116, hopper 114, gathers dust mouth 118, supplied materials control mechanism 113, spiral feed mechanism 112, weighing mechanism 111 and spiral feed mechanism discharge gate 117, material control valve 115 is connected with feed inlet 116, feed inlet 116 is connected with hopper 114, it sets up in hopper 114 top and is connected with it to gather dust mouth 118, supplied materials control mechanism 113 sets up in hopper 114 below and is connected with spiral feed mechanism 112, weighing mechanism 111 sets up in spiral feed mechanism 112 below and is connected with it, spiral feed mechanism discharge gate 117 is connected with spiral feed mechanism 112.
The method comprises the steps of selecting semi-hydrated gypsum as citric acid semi-hydrated gypsum powder, selecting two additives, wherein the additives are 0.2 part of aluminum potassium sulfate dodecahydrate coagulant, 0.2 part of beta naphthalenesulfonic acid water reducer and 0.02 part of trichloroisocyanuric acid mildew preventive, accurately metering different additives by an additive metering device 2, feeding the additives into an additive mixer 4 through an additive spiral conveying device 3, mixing and stirring to obtain a composite additive, and discharging the mixed composite additive from the additive mixer 4 to be added into a gypsum powder-additive primary mixer 7. And (3) discharging gypsum from a gypsum feeding bin 5, and discharging a small part of gypsum to a gypsum powder-additive primary mixer 7 through a gypsum spiral conveying device 6 with a metering device, wherein the mass of the small part of gypsum is 8% of the total mass of the gypsum discharged from the gypsum feeding bin 5. A small part of discharged gypsum and the composite additive are uniformly scattered in a gypsum powder-additive primary mixer 7 to obtain compound gypsum, and the compound gypsum is added into a mixer 8. Discharging most of the residual gypsum through a discharge port of the gypsum spiral conveying equipment 6 with a metering device, which is far away from the feed port, adding the discharged gypsum into the mixer 8, and uniformly mixing the discharged gypsum with the compound gypsum added into the mixer 8 to obtain a final product.
Comparative example 1
This comparative example provides a mixing apparatus for hemihydrate gypsum and an additive, as in example 1, with the difference that the mixing apparatus does not comprise the additive mixer 4, and the additive screw conveyor device 3 is connected directly to the landplaster-additive primary mixer 7, i.e. the additive is added directly to the gypsum without mixing, and the other apparatus is not changed.
Comparative example 2
This comparative example provides a mixing apparatus for hemihydrate gypsum and additives, the difference being that the mixing apparatus does not comprise a gypsum powder-additive primary mixer 7, the gypsum screw conveyor 6 with metering device has only a discharge outlet near the feed inlet, the additive mixer 4 is connected to a mixer 8, i.e. the gypsum is not mixed with the composite additive step by step any more, but is mixed directly in one step, and the other apparatus is not changed.
Comparative example 3
This comparative example provides a mixing apparatus of hemihydrate gypsum and an additive, which is different from example 1 in that the additive silo 1 is provided with only one, that is, different kinds of additives are added in the same additive silo, and the other apparatus is not changed.
The performance tests were performed on the hemihydrate gypsum processed in examples 1-2 and comparative examples 1-3 described above. Based on the contrast characteristics, the utility model discloses get respectively and get the post-mixing material respectively every 6h after the normal operation ejection of compact and detect, test mechanical properties parameter, through the testing result difference, judge the even degree of product, the detection of above-mentioned each product is based on GB/T9776-2008, GB/T17669.1 ~ 5-1999, and concrete test result is as shown in table 1.
TABLE 1
The test results in table 1 show that the semi-hydrated gypsum powder and the additive mixed by the device in examples 1 and 2 have little strength difference between the test blocks made of the mixed materials in different time periods, which indicates that the mixing effect is good, and the additive and the gypsum powder are uniformly stirred and more fully and thoroughly fused; the strength of the test blocks made of the mixed materials in the comparative examples 1, 2 and 3 is very different, which indicates that the mixing effect is not good.
Device process is monitored entirely, and continuous ration adds, improves the additive amount precision, additive and gypsum stirring, fusion are abundant thorough. The additive comprises one or at least two of a coagulant, a water reducing agent or a mildew preventive. The flexural strength and the compressive strength of the finally obtained semi-hydrated gypsum product are greatly improved, and the final setting time is shortened.
The applicant states that the present invention is illustrated by the above embodiments, but the present invention is not limited to the above detailed process equipment and process flow, i.e. the present invention is not meant to be implemented by relying on the above detailed process equipment and process flow. It should be clear to those skilled in the art that any improvement of the present invention, to the equivalent replacement of each raw material of the present invention, the addition of auxiliary components, the selection of specific modes, etc., all fall within the protection scope and disclosure scope of the present invention.
Claims (10)
1. The mixing device of the semi-hydrated gypsum and the additive is characterized by comprising an additive bin (1), an additive metering device (2), an additive spiral conveying device (3), an additive mixer (4), a gypsum feeding bin (5), a gypsum spiral conveying device (6) with a metering device, a gypsum powder-additive primary mixer (7) and a mixer (8), wherein the additive metering device (2) is arranged at the outlet position of a control valve of the additive bin (1), the additive spiral conveying device (3) is arranged below the additive bin (1) and is connected with the additive mixer (4), the gypsum spiral conveying device (6) with the metering device is arranged below the gypsum feeding bin (5) and is connected with the gypsum feeding bin (5), the additive mixer (4) is connected with the gypsum powder-additive primary mixer (7), the gypsum powder-additive primary mixer (7) is connected with the mixer (8), and the gypsum screw conveying equipment (6) with the metering device is connected with the gypsum powder-additive primary mixer (7) and the mixer (8).
2. The mixing device of semi-hydrated gypsum and additive according to claim 1, characterized in that the additive metering device (2) is connected with the control valve of the additive storage bin (1) through flexible material, the additive metering device (2) comprises a feeding control valve (115), a feeding hole (116), a hopper (114), a dust collecting port (118), an incoming material control mechanism (113), a spiral feeding mechanism (112), a weighing mechanism (111) and a spiral feeding mechanism discharge hole (117), the feeding control valve (115) is connected with the feeding hole (116), the feeding hole (116) is connected with the hopper (114), the dust collecting port (118) is arranged above and connected with the hopper (114), the incoming material control mechanism (113) is arranged below the hopper (114) and connected with the spiral feeding mechanism (112), the weighing mechanism (111) is arranged below and connected with the spiral feeding mechanism (112), the discharge hole (117) of the spiral feeding mechanism is connected with the spiral feeding mechanism (112).
3. The mixing device of the semi-hydrated gypsum and the additive, according to the claim 1, is characterized in that the number of the additive bins (1) is more than two, and the more than two additive bins (1) are connected with the additive spiral conveying equipment (3) side by side.
4. A mixing device of semi-hydrated gypsum and additive as claimed in claim 1, characterized in that the gypsum screw conveyer equipment (6) with metering device is provided with two discharge ports, wherein the first discharge port is arranged at the head end of the screw conveyer equipment close to the feed port of the gypsum screw conveyer equipment (6) with metering device, and the second discharge port is arranged at the tail end of the screw conveyer equipment far away from the feed port of the gypsum screw conveyer equipment (6) with metering device.
5. A mixing apparatus of hemihydrate gypsum and additives as claimed in claim 4, characterized in that the first discharge port of the gypsum screw conveyor device (6) with metering device is connected with the gypsum powder-additive primary mixer (7).
6. A mixing device of hemihydrate gypsum and additives as claimed in claim 4, characterized in that the second discharge port of the gypsum screw conveyor equipment (6) with metering device is connected with the mixer (8).
7. The mixing device of the hemihydrate gypsum and the additive, according to the claim 1, is characterized in that a first dust collecting mechanism (9) is arranged at the upper part of the additive storage bin (1) with the metering device, and the first dust collecting mechanism (9) is connected with the additive storage bin (1).
8. The mixing device of the hemihydrate gypsum and the additive according to claim 1, wherein a second dust collecting mechanism (10) is arranged at the upper part of the additive mixer (4), and the second dust collecting mechanism (10) is connected with the additive mixer (4).
9. The mixing device of the semi-hydrated gypsum and the additive as claimed in claim 1, characterized in that a third dust collecting mechanism (11) is arranged at the upper part of the gypsum powder-additive primary mixer (7), and the third dust collecting mechanism (11) is connected with the gypsum powder-additive primary mixer (7).
10. The mixing device of hemihydrate gypsum and additive of claim 1, wherein the mixer (8) upper portion is equipped with dust collection mechanism four (12), dust collection mechanism four (12) and mixer (8) both way junction, dust collection mechanism four (12) still is connected with gypsum feeding bin (5) and gypsum screw conveyor (6) of taking metering device, dust collection mechanism four (12) still is provided with draught fan (13), dust collection mechanism four (12) are connected with draught fan (13), draught fan (13) are provided with aiutage (14), draught fan (13) are connected with aiutage (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922061495.XU CN211492263U (en) | 2019-11-26 | 2019-11-26 | Mixing arrangement of hemihydrate gypsum and additive |
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| CN201922061495.XU CN211492263U (en) | 2019-11-26 | 2019-11-26 | Mixing arrangement of hemihydrate gypsum and additive |
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| CN110877416A (en) * | 2019-11-26 | 2020-03-13 | 江苏一夫科技股份有限公司 | Mixing arrangement of hemihydrate gypsum and additive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877416A (en) * | 2019-11-26 | 2020-03-13 | 江苏一夫科技股份有限公司 | Mixing arrangement of hemihydrate gypsum and additive |
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