CN214681091U - Efficient limestone powder conveying mixer - Google Patents
Efficient limestone powder conveying mixer Download PDFInfo
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- CN214681091U CN214681091U CN202120630166.7U CN202120630166U CN214681091U CN 214681091 U CN214681091 U CN 214681091U CN 202120630166 U CN202120630166 U CN 202120630166U CN 214681091 U CN214681091 U CN 214681091U
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Abstract
The utility model relates to a limestone powder high-efficiency conveying mixer, belonging to the technical field of air-powder mixers; the mixing device comprises a mixer main body and a feeding pipe, wherein the feeding pipe is of a cylindrical tubular structure with equal diameter, the upper end of the feeding pipe is connected with a feeding device, the mixer main body is of a cylindrical tubular structure, one end of the mixer main body is an air inlet, the other end of the mixer main body is a discharge port, one end of the air inlet is connected with a Roots blower, and one end of the discharge port is connected with a conveying main pipe; the feeding pipe is connected with the interior of the mixer main body through a square connecting box, an air inlet in the mixer main body is provided with an injection nozzle which is in a conical structure, one end with a large diameter is communicated with the air inlet of the mixer main body, and one end with a small diameter faces one end of a discharge hole of the mixer main body; the space between the injection nozzle and the discharge port and the space inside the connecting box body jointly form an air-powder mixing chamber of the conveying mixer; the problems that the feeding of the existing conveying mixer is easy to block and the space of the air-powder mixing chamber is limited are solved.
Description
Technical Field
The utility model belongs to the technical field of the wind powder blender, concretely relates to blender is carried to high efficiency of limestone flour.
Background
The existing old style transporting mixer is shown in fig. 3, and comprises a mixer main body and a feeding pipe. The mixer main body adopts a cylindrical structure, comprises an air inlet at the right end and a discharge port at the left end, and is internally provided with an injection nozzle and an air-powder mixing chamber, the air-powder mixing chamber is communicated with the discharge port, an inlet of the injection nozzle is communicated with the air inlet, and an outlet of the injection nozzle faces the air-powder mixing chamber. The inlet pipe is the flat mouth column structure of thick end down, and the lower extreme is linked together with the inside wind powder mixing chamber of blender main part, and the export of inlet pipe inclines and towards the exit of drawing the jet nozzle to discharge gate department.
In the old version of the conveying mixer, the discharge pipe is a steel pipe of DN100, which is compressed into a flat mouth shape when entering the mixing chamber, where it is very easy to block the feed channel. The air-powder mixing chamber is a part of a conveying pipeline, the gas phase and the solid phase are mixed by utilizing the inner space of DN125 pipe diameter, and the conveying concentration is low due to limited space and insufficient mixing.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a high-efficiency limestone powder conveying mixer; the problems that the feeding of the existing conveying mixer is easy to block and the space of the air-powder mixing chamber is limited are solved.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
The efficient limestone powder conveying mixer comprises a mixer main body and a feeding pipe, wherein the feeding pipe is arranged at the upper end of the mixer main body and is communicated with the interior of the mixer main body; the feeding pipe is of a cylindrical tubular structure with the same diameter and is vertically arranged at the upper end of the mixer main body, and a connecting flange used for being connected with a feeding device is arranged on the upper end surface; the mixer main body is of a cylindrical tubular structure, is horizontally arranged at the lower end of the feeding pipe, one end of the mixer main body is an air inlet, the other end of the mixer main body is a discharge port, one end of the air inlet is provided with a connecting flange used for being connected with the Roots blower, and one end of the discharge port is provided with a connecting flange used for being connected with the conveying main pipe; the feeding pipe is connected with the interior of the mixer main body through a connecting box, the connecting box is of a square box structure, the feeding pipe is arranged on the upper end face of the connecting box, and the lower end of the connecting box is communicated with the inner cavity of the mixer main body; an injection nozzle is arranged at an air inlet in the mixer main body, the injection nozzle is of a conical structure, one end with a large diameter is an inlet of the injection nozzle, one end with a small diameter is an outlet of the injection nozzle, the inlet faces one end of the air inlet of the mixer main body and is communicated with the air inlet of the mixer main body, and the outlet faces one end of the discharge hole of the mixer main body; the space between the outlet of the injection nozzle and the discharge port and the space inside the connecting box body jointly form an air-powder mixing chamber of the conveying mixer.
Furthermore, the upper end entry of inlet pipe is the feed inlet, and the internal diameter of feed inlet is greater than DN 150.
Further, the inner diameter of the mixer body is greater than DN 125.
Further, the up end of connecting box is the square board of level setting, and the width of square board is greater than the diameter of blender main part, the inlet pipe sets up in the central point of square board and puts.
Further, the two side plates of the connecting box are used for connecting the two side edges of the square plate with the outer side surface of the mixer main body, and the side plates incline towards the inner side.
Furthermore, the side plate of the connecting box close to one end of the air inlet of the mixer main body is vertically arranged.
Further, the lower end of the side plate at one end, close to the discharge port of the mixer main body, of the connecting box is inclined towards the discharge port, and an included angle formed between the lower end of the side plate and the axis of the mixer main body is larger than 60 degrees.
Further, the distance between the inlet of the injection nozzle and the air inlet of the mixer main body is smaller than the distance between the connecting box and the air inlet of the mixer main body.
Furthermore, the outer end of the outlet of the injection nozzle is overlapped with the axis of the feeding pipe in the horizontal direction.
The utility model discloses produced beneficial effect for prior art does:
(1) the utility model provides a conveying mixer, increased the feeding bore, enlarged DN150, this bore generally matches with general powder feeder unloading bore, increases the blanking passageway, also can not block up to the moisture content is high, has guaranteed effectively the unloading stability;
(2) the utility model provides a conveying mixer, increase original mixing chamber space, enlarge the structure space in radial and axial extension respectively, end plate and horizontal contained angle after extending simultaneously all are not less than 60, be greater than lime powder angle of repose, can effectively guarantee the blanking effect, mixing chamber after the expansion can improve the wind powder mixing ratio, the conveying capacity of this kind of mixer has been promoted, can be according to the technological requirement, carry the technological adjustment through the frequency conversion control unloading adjustment of supporting batcher and carry out the conveying technology adjustment in the great range, the demand of different technologies has been satisfied, the suitability of new style of mixer has been strengthened;
(3) the utility model provides a conveying mixer, because the improvement of the mixed proportion of wind powder, promote about 3kg/Nm3 by original defeated powder concentration promptly for about 0.6kg/Nm3 after, carry required amount of wind and also reduce to original about 1/4, the corresponding reduction of power of fan plays the effect of consumption reduction, simultaneously because fan power reduces, the noise of entire system operation has also reduced, the purpose of making an uproar falls has been played again, compare with old style blender, the energy efficiency ratio obviously promotes, it is very important to the equipment of long-term operation;
(4) the utility model provides a conveying mixer, because the improvement at blanking passageway and mixing space, guaranteed that lime powder under any state all gets into pipeline very easily in, can not be because of the moisture content of self, the defeated powder effect of change influence such as viscosity, this conveying mixer can be high-efficient steady operation for a long time in the experiment, can not be disconnected powder, old style blender will appear carrying discontinuously in service, carry the powder volume unstability, the disconnected powder phenomenon of sometimes even takes place, this conveying mixer's nozzle tip aligns with the feed opening central line, improved the back like this and both increased the effective space of mixing chamber, also prevent to return the not smooth phenomenon of blanking to take place on the defeated air supply simultaneously.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
FIG. 1 is a front cross-sectional view of the present invention in its entirety;
FIG. 2 is a sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of an old version of the transfer mixer;
wherein, 1 is the inlet pipe, 2 is the blender main part, 3 is the air intake, 4 is the discharge gate, 5 is the injection nozzle, 6 is the wind powder mixing chamber, 7 is flange, 8 is the connecting box.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1-2, the utility model provides a high-efficient mixer of carrying of limestone flour, including blender main part 2 and inlet pipe 1, inlet pipe 1 is located the upper end of blender main part 2 and is linked together with blender main part 2 is inside.
The inlet pipe 1 is the cylindrical tubular structure of isodiametric, vertically sets up in the upper end of blender main part 2, and the welding of up end has flange 7, and inlet pipe 1 is connected with feed arrangement through flange 7. The upper end entry of inlet pipe 1 is the feed inlet, and the internal diameter of feed inlet is DN 150.
Mixer main part 2 is columniform tubular structure, and the internal diameter is DN125, and the level sets up in the lower extreme of inlet pipe 1, and both ends weld respectively about have flange 7. The left end of the mixer main body 2 is provided with a discharge port 4 and is connected with the main conveying pipe through a connecting flange 7 at the left end; the right end of the mixer main body 2 is an air inlet 3 and is connected with the Roots motor through a connecting flange 7 at the right end.
The feed pipe 1 is connected to the mixer body 2 via a connecting box 8. The connecting box 8 is of a box body structure, and the lower end of the connecting box is communicated with the inner cavity of the mixer main body 2. The upper end surface of the connecting box 8 is a horizontally arranged square plate, the width of the square plate is larger than the diameter of the mixer main body 2, and the feeding pipe 1 is arranged in the center of the square plate; the two side plates of the connecting box 8 are used for connecting the two side edges of the square plate with the outer side surface of the mixer main body 2, and the side plates incline towards the inner side; a side plate at the right end of the connecting box 8 is vertically arranged; the lower end of the side plate at the left end of the connecting box 8 is disposed toward the left side and is disposed at an angle of 60 ° to the axis of the mixer main body 2. The feed pipe 1 increases the cavity space with the inside of the mixer main body 2 through the connection box 8.
An injection nozzle 5 is arranged at an air inlet 3 inside the mixer main body 2. The injection nozzle 5 is of a conical structure, the end with the larger diameter is an inlet of the injection nozzle 5, and the end with the smaller diameter is an outlet of the injection nozzle 5.
The inlet is towards one end of the air inlet 3 of the mixer main body 2 and is communicated with the air inlet 3 of the mixer main body 2. The diameter of the inlet is DN122, which is the same as the diameter of the air inlet 3 of the mixer main body 2. The outer end of the inlet is arranged on the right side of the right end side plate of the connecting box 8.
The outlet is towards one end of the discharge port 4 of the mixer body 2, the diameter of the outlet is DN50, and the outer end of the outlet is coincident with the axis of the feeding pipe 1 in the horizontal direction.
The space between the outlet of the injection nozzle 5 and the discharge port 4 and the space inside the connecting box body 8 jointly form an air-powder mixing chamber 6 of the conveying mixer.
The utility model discloses a theory of operation does:
the roots's fan passes through 3 air intakes of blender main part 2 to the inside air feed of blender main part 2, and wind gets into the injection nozzle 5 through the import of injection nozzle 5 inside, because the exit diameter of injection nozzle 5 is less than the diameter of import, so wind is accelerated through the back velocity of flow from the export of injection nozzle 5, and the wind after the acceleration gets into in the wind powder mixing chamber 6.
Limestone powder in the feeding device enters an air-powder mixing chamber 6 in the mixer main body 2 through a feeding pipe 1 and is mixed with air at an outlet of an injection nozzle 5. The mixed air-powder mixture enters the main conveying pipe through the discharge port 4 of the mixer main body 2.
The conveying mixer directly increases the original feeding pipe 1 from DN100 to DN150, so that the pipe diameter of the feeding hole can be enlarged, the blockage at the pipe opening caused by high water content of limestone powder is prevented, and the thickening of the pipe diameter also improves the powder discharging amount.
The air-powder mixing chamber 6 of the conveying mixer is changed from an original DN125 pipeline chamber to an air-powder mixing chamber combining a pipeline chamber and a rectangular mixing chamber, the radial and axial sizes of the pipeline are respectively increased, the space of the mixing chamber is enlarged, and the mixing concentration is effectively improved; the rectangular mixing chamber is added, so that the blockage can be effectively prevented, the mixing proportion of the air quantity and the powder quantity at the position is improved, the mixing concentration is increased, and the powder conveying quantity is improved.
Based on in the actual operation in-process, the conveying capacity that limestone powder technology required is fixed, therefore the improvement of wind powder mixture ratio, the unit volume amount of wind transport dust volume increase promptly, leads to original supporting roots's fan just can reduce the amount of wind, and then reduces roots's fan's power, finally plays energy saving and consumption reduction's effect. The air delivery volume of the novel mixer is about 1/4 of the air volume of the original matched Roots blower, the power of the matched Roots blower is greatly reduced, the energy is saved, and the noise is reduced obviously. Meanwhile, as the powder conveying capacity is increased, the air pressure of the original matched Roots blower is increased from about 25KPa to about 40KPa, so that the conveying of the dense-phase lime powder is effectively met.
Through the adjustment of the structure of the air-powder mixer and the matched fan, the conveying performance of the mixer can be effectively improved, and the efficient, energy-saving and stable operation of the device is ensured.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a high-efficient blender of carrying of limestone flour which characterized in that: the mixer comprises a mixer main body (2) and a feeding pipe (1), wherein the feeding pipe (1) is positioned at the upper end of the mixer main body (2) and is communicated with the interior of the mixer main body (2);
the feeding pipe (1) is of a cylindrical tubular structure with the same diameter and is vertically arranged at the upper end of the mixer main body (2), and a connecting flange (7) used for being connected with a feeding device is arranged on the upper end face of the mixer main body;
the mixer main body (2) is of a cylindrical tubular structure, is horizontally arranged at the lower end of the feeding pipe (1), one end of the mixer main body is an air inlet (3), the other end of the mixer main body is a discharge hole (4), one end of the air inlet (3) is provided with a connecting flange (7) used for being connected with a Roots blower, and one end of the discharge hole (4) is provided with a connecting flange (7) used for being connected with a conveying main pipe;
the feeding pipe (1) is connected with the interior of the mixer main body (2) through a connecting box (8), the connecting box (8) is of a square box structure, the feeding pipe (1) is arranged on the upper end face of the connecting box (8), and the lower end of the connecting box (8) is communicated with the inner cavity of the mixer main body (2);
an injection nozzle (5) is arranged at an air inlet (3) inside the mixer main body (2), the injection nozzle (5) is of a conical structure, one end with a large diameter is an inlet of the injection nozzle (5), one end with a small diameter is an outlet of the injection nozzle (5), the inlet faces one end of the air inlet (3) of the mixer main body (2) and is communicated with the air inlet (3) of the mixer main body (2), and the outlet faces one end of a discharge hole (4) of the mixer main body (2);
the space between the outlet of the injection nozzle (5) and the discharge hole (4) and the space inside the connecting box (8) jointly form an air-powder mixing chamber (6) of the conveying mixer.
2. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the upper end entry of inlet pipe (1) is the feed inlet, and the internal diameter of feed inlet is greater than DN 150.
3. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the internal diameter of the mixer body (2) is greater than DN 125.
4. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the up end of connecting box (8) is the square board that the level set up, and the width of square board is greater than the diameter of blender main part (2), inlet pipe (1) sets up in the central position of square board.
5. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the two side plates of the connecting box (8) are used for connecting the two side edges of the square plate with the outer side surface of the mixer main body (2), and the side plates incline towards the inner side.
6. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: and the side plate of one end of the connecting box (8), which is close to the air inlet (3) of the mixer main body (2), is vertically arranged.
7. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the lower end of the side plate at one end of the discharge hole (4) of the connecting box (8) close to the mixer main body (2) is obliquely arranged towards the discharge hole (4), and the included angle between the lower end of the side plate and the axis of the mixer main body (2) is larger than 60 degrees.
8. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the distance between the inlet of the injection nozzle (5) and the air inlet (3) of the mixer main body (2) is smaller than the distance between the connecting box (8) and the air inlet (3) of the mixer main body (2).
9. The efficient limestone powder conveying mixer as claimed in claim 1, which is characterized in that: the outer end of the outlet of the injection nozzle (5) is overlapped with the axis of the feeding pipe (1) in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120630166.7U CN214681091U (en) | 2021-03-29 | 2021-03-29 | Efficient limestone powder conveying mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120630166.7U CN214681091U (en) | 2021-03-29 | 2021-03-29 | Efficient limestone powder conveying mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214681091U true CN214681091U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120630166.7U Active CN214681091U (en) | 2021-03-29 | 2021-03-29 | Efficient limestone powder conveying mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214681091U (en) |
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2021
- 2021-03-29 CN CN202120630166.7U patent/CN214681091U/en active Active
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