Center flow guide type bulk material mixing device

Abstract

The utility model relates to a central flow guide type bulk material mixing device which comprises a mixing bin, a material collecting bin, a plurality of peripheral mixing pipes and a vibrator, a plurality of through holes are formed in the peripheral mixing pipes, a switch valve is installed at the communication position of the mixing bin and the material collecting bin, a central flow guide device is installed in the mixing bin and comprises a first flow guide pipe, and a second flow guide pipe is installed in the first flow guide pipe. The bottom of the first flow guide pipe is coaxially sleeved with a second flow guide pipe, a plurality of partition plates distributed in the circumferential direction of the first flow guide pipe are further installed outside the first flow guide pipe, and flow guide channels can be formed between every two adjacent partition plates and openings in the top ends of the first flow guide pipe and the second flow guide pipe. A connecting plate is installed between the two partition plates of at least one flow guide channel, and flow guide plates which are in one-to-one correspondence with the flow guide channels and are arranged downwards in an inclined mode are installed in the second flow guide pipe. According to the utility model, bulk materials with different particle sizes at the central position in the mixing bin can be fully premixed before flowing into the material collecting bin, so that the mixing quality of the bulk materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of blending equipment, especially, relate to a center flow type bulk material blending device. BACKGROUND

[0002] The utility model discloses a powder blending equipment convenient to clean in the prior art, and specifically, as shown in the figure, the existing blending equipment includes a blending bin, a material collecting bin, and four peripheral blending pipes and a central blending pipe are arranged in the blending bin. Figure 7 When the vibrator works, the peripheral blending pipes can be driven to vibrate, then the vibration is transmitted to the central blending pipe through the connecting rod, and then the bulk material can flow into the material collecting bin by using the peripheral blending pipes, the central blending pipe and the vibrator.

[0003] However, by adopting the above setting mode, according to the flowability of the material, when the bulk material enters the blending bin, under the action of gravity, the bulk material with large diameter is easy to roll to the wall surface of the blending bin, and the bulk material with small diameter is easy to stay in the middle of the blending bin, that is, the center line position of the blending bin and the bottom layer of the blending bin, that is, the closer the bulk material is to the center of the blending bin and the bottom of the blending bin, the smaller the particle size is, and by arranging the central blending pipe in the blending bin, the bulk material with different particle sizes at the central position in the blending bin cannot be fully premixed before flowing into the material collecting bin, so the quality of the bulk material blending needs to be improved, and therefore, there are still defects and deficiencies in the prior art. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a center flow type bulk material blending device to solve the problems in the background art.

[0005] In order to solve the above problems, the utility model adopts the technical scheme of:

[0006] The utility model provides a kind of central flow type bulk material blending device, including vertically distributed blending bin, the lower coaxial line communication of the blending bin is equipped with material collecting bin, and several four around blending pipes are installed in blending bin, the top of the four around blending pipe is equipped with vibrator, the bottom of four around blending pipe is connected with material collecting bin, and several through holes are formed in four around blending pipe, the communication position of blending bin and material collecting bin is equipped with the on-off valve that can be opened and closed, and central flow device is installed in blending bin, the central flow device includes the first flow pipe being coaxially arranged with blending bin and being open at both ends, the bottom of the first flow pipe is coaxially sleeved with the second flow pipe being open at both ends and being connected with blending bin, and the first flow pipe is further equipped with multiple baffles being vertically arranged and being vertically arranged along the circumferential direction of the first flow pipe, and the top opening of the first flow pipe and the second flow pipe can be formed between every two adjacent baffles and the second flow pipe, and the bottom of the connecting plate is connected with the second flow pipe, and the second flow pipe is equipped with the flow plate being correspondingly arranged with flow channel and being obliquely arranged downwards.

[0007] Further, there is a gap between the outer wall of the second flow pipe and the inner wall of the blending bin.

[0008] Further, the connecting plate is installed between the two baffles away from the first flow pipe of multiple flow channels, and the heights of the top ends of multiple connecting plates are different.

[0009] Further, the heights of multiple flow plates are different.

[0010] Further, the bottom end of the second flow pipe is coaxially connected with the tapered material guide pipe with wide top and narrow bottom.

[0011] Further, the second flow pipe and the blending bin are connected by multiple connecting members in rod structure.

[0012] Further, the on-off valve is a plug valve device, and the plug valve device includes a valve body coaxially arranged with the blending bin, the valve body is a shell structure open at both top and bottom ends, and the top and bottom ends of the valve body are connected with the blending bin and the material collecting bin respectively, and a valve plate capable of being opened and closed is further installed in the valve body.

[0013] Further, the valve plate is provided with a material dropping hole coaxially arranged with the valve plate.

[0014] Further, the bottom of the blending bin is funnel-shaped with wide top and narrow bottom, and the communication position of the blending bin and the valve body is adapted to the inner diameter of the valve body; the top of the material collecting bin is funnel-shaped with narrow top and wide bottom, and the communication position of the material collecting bin and the valve body is adapted to the inner diameter of the valve body.

[0015] Further, the bottom of the aggregate bin is funnel-shaped with a top width and a bottom narrow, and the bottom end of the aggregate bin is provided with an opening.

[0016] With the above technical scheme, the present application has the following beneficial effects:

[0017] The difference between the present application and the prior art is that: a switch valve is installed at the communication position of the mixing bin and the aggregate bin, which can open and close the communication position of the mixing bin and the aggregate bin; on this basis, the central mixing pipe in the mixing bin is replaced by a central flow guide device, and the structure of the central flow guide device is designed skillfully, so that the bulk materials with different particle sizes at the central position in the mixing bin can fall into the second flow guide pipe from different height positions through the first flow guide pipe and the flow guide channel, respectively; the bulk materials falling into the second flow guide pipe through the flow guide channel can fall on the flow guide plate during the falling process in the second flow guide pipe, and the bulk materials are scattered by the flow guide plate and flow to the central position of the second flow guide pipe after changing direction, so that the bulk materials scattered by the flow guide plate can be fully premixed with the bulk materials falling into the second flow guide pipe through the first flow guide pipe. In general, the present application can fully premix the bulk materials with different particle sizes at the central position in the mixing bin before flowing into the aggregate bin, so as to improve the mixing quality of the bulk materials. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the present application;

[0019] Figure 2 It is a structural schematic view of the present application; Figure 1 It is a structural schematic view of the present application;

[0020] Figure 3 It is a structural schematic view of the present application; Figure 1 It is a structural schematic view of the present application;

[0021] Figure 4 It is a structural schematic view of the present application; Figure 3 It is a structural schematic view of the present application;

[0022] Figure 5 It is a structural schematic view of the present application; Figure 3 It is a structural schematic view of the present application;

[0023] Figure 6 It is a structural schematic view of the present application;

[0024] Figure 7 It is a structural schematic view of the present application;

[0025] 1, four peripheral mixing pipe; 2, center flow guide device; 21, first flow guide pipe; 22, second flow guide pipe; 23, partition; 24, flow guide channel; 25, connecting plate; 26, flow guide plate; 27, tapered material guide pipe; 28, connecting piece; 3, mixing bin; 4, material collecting bin; 5, vibrator; 6, on-off valve; 61, valve body; 62, valve plate; 63, support structure; 64, electric telescopic rod; 65, material falling port; 7, connecting device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and beneficial effects of the utility model clearer, the utility model embodiment will be described in further detail below with reference to the drawings.

[0027] As Figures 1 to 6 shown, the utility model provides a center flow guide type bulk material mixing device, including the mixing bin 3 of vertical distribution, the lower coaxial line of mixing bin 3 is connected with the material collecting bin 4, and several four peripheral mixing pipes 1 are installed in mixing bin 3, and the top end of four peripheral mixing pipe 1 is all installed with vibrator 5, specifically, the top end of four peripheral mixing pipe 1 is provided with the cover plate after penetrating mixing bin 3, and vibrator 5 is installed on the cover plate, the bottom end of four peripheral mixing pipe 1 is all connected with the communication in material collecting bin 4 through connecting device 7, and the through hole of several different hole diameters is all set up on four peripheral mixing pipe 1, specifically, mixing bin 3, material collecting bin 4, vibrator 5 and connecting device 7 are all prior art, namely, the use mode and working principle of the utility model in use are same with the use mode and working principle of prior art patent: the utility model patent with the public number CN215877735U using four peripheral mixing pipes to fall material, to realize the mixing of bulk material of different particle sizes.

[0028] The difference lies in: the communication position of mixing bin 3 and material collecting bin 4 is installed with the on-off valve 6 that can open and close, namely, the on-off valve 6 can open and close the communication position of mixing bin 3 and material collecting bin 4, on this basis, center flow guide device 2 is installed in mixing bin 3, namely, the center mixing pipe is not set in mixing bin 3, and is replaced by center flow guide device 2, and center flow guide device 2 includes the first flow guide pipe 21 coaxially arranged with mixing bin 3 and having two open ends, the second flow guide pipe 22 is coaxially arranged outside the bottom of the first flow guide pipe 21 and has two open ends and is connected with the mixing bin 3, specifically, in use, bulk material can fall into the second flow guide pipe 22 through the first flow guide pipe 21, and since the second flow guide pipe 22 is connected with the mixing bin 3, the position of the center flow guide device 2 in the mixing bin 3 can be fixed.

[0029] Further, a plurality of baffle plates 23 are installed outside the first flow guide pipe 21 and are vertically arranged at equal intervals along the circumference of the first flow guide pipe 21, and each two adjacent baffle plates 23 and the top opening of the first flow guide pipe 21 and the second flow guide pipe 22 can form a flow guide channel 24, specifically, the bottom of the baffle plate 23 away from the first flow guide pipe 21 is connected with the inner wall of the second flow guide pipe 22, and in use, the relatively coarse granular material outside the first flow guide pipe 21 can fall into the second flow guide pipe 22 through the flow guide channel 24; the two baffle plates 23 away from the first flow guide pipe 21 of at least one flow guide channel 24 are installed with a vertically distributed connecting plate 25, the bottom end of the connecting plate 25 is connected with the second flow guide pipe 22, specifically, as shown in Figure 3 one of the flow guide channels 24 is flush with the top opening of the second flow guide pipe 22, and the inlet of the flow guide channel 24 provided with the connecting plate 25 will be higher than the top opening of the second flow guide pipe 22, that is, by ingeniously designing the structure of the central flow guide device 2, the inlets of the flow guide channels 24 can be at different height positions, in addition, the top end of the first flow guide pipe 21 can be arranged to be higher than the top end of the connecting plate 25, so that the inlet positions of the first flow guide pipe 21 are all higher than the inlets of the flow guide channels 24; and since the granular material at different height positions has different particle sizes, the granular material of different particle sizes can fall into the second flow guide pipe 22 through the first flow guide pipe 21 and the flow guide channel 24 respectively from different height positions; the second flow guide pipe 22 is installed with a flow guide plate 26 corresponding to the flow guide channel 24 and arranged obliquely downward, specifically, the lower end of each flow guide plate 26 faces the central position of the second flow guide pipe 22.

[0030] In use, since the inlets of the flow guide channels 24 are at different height positions, and the inlet positions of the first flow guide pipe 21 are all higher than the inlets of the flow guide channels 24, the granular material of different particle sizes at the central position in the mixing bin 3 can fall into the second flow guide pipe 22 through the first flow guide pipe 21 and the flow guide channel 24 respectively from different height positions, and the granular material falling into the second flow guide pipe 22 through the flow guide channel 24 can fall on the flow guide plate 26 during the falling process in the second flow guide pipe 22, and the granular material is scattered by the flow guide plate 26 and flows to the central position of the second flow guide pipe 22 after changing direction, so that the granular material scattered by the flow guide plate 26 can be fully premixed with the granular material falling into the second flow guide pipe 22 through the first flow guide pipe 21 by the scattering method, in general, the granular material of different particle sizes at the central position in the mixing bin 3 can be fully premixed before flowing into the aggregate bin 4, so as to improve the mixing quality of the granular material.

[0031] Further, as shown in Figure 1 and Figure 2As shown in the figure, there is a gap between the outer wall of the second flow guide pipe 22 and the inner wall of the mixing bin 3; in this way, the bulk material outside the second flow guide pipe 22 can be discharged through the gap between the second flow guide pipe 22 and the mixing bin 3; in addition, the pre-mixed bulk material in the second flow guide pipe 22 can be mixed again with the bulk material discharged through the gap between the second flow guide pipe 22 and the mixing bin 3 when falling to the communication position of the mixing bin 3 and the collecting bin 4, so as to further improve the mixing quality of the bulk material.

[0032] Further, as shown in the figure, Figure 3 The top ends of the plurality of connecting plates 25 are at different heights, for example, the number of the partition plates 23 can be three, and the number of the flow guide channels 24 provided with the connecting plates 25 can be two; in this way, during use, the inlet ports of the three flow guide channels 24 can be located at different height positions, so as to make the bulk material located at the central position in the mixing bin 3 fall into the second flow guide pipe 22 through the flow guide channels 24 at different height positions.

[0033] Further, as shown in the figure, Figure 3 The heights of the plurality of flow guide plates 26 are different, specifically, the height positions of the flow guide plates 26 can be set according to the height of the inlet ports of the flow guide channels 24; in addition, when the partition plates 23 are equidistantly distributed along the circumference of the first flow guide pipe 21, the flow guide plates 26 are also equidistantly distributed along the circumference of the second flow guide pipe 22; during use, since the flow guide plates 26 are at different height positions, the bulk material in the second flow guide pipe 22 can be discharged at different height positions, so as to avoid the bulk material from piling up on the flow guide plates 26 due to the consistent height positions of the flow guide plates 26.

[0034] Further, as shown in the figure, Figures 1 to 3 The bottom end of the second flow guide pipe 22 is coaxially communicated with a tapered material guide pipe 27 with a wide top and a narrow bottom, and the two ends of the tapered material guide pipe 27 are open; by providing the tapered material guide pipe 27, the bulk material in the second flow guide pipe 22 can be conveniently discharged.

[0035] Further, as shown in the figure, Figure 1 and Figure 2 The second flow guide pipe 22 and the mixing bin 3 are connected through a plurality of connecting pieces 28 in a rod-shaped structure, specifically, each connecting piece 28 is radially parallel to the second flow guide pipe 22, and the plurality of connecting pieces 28 are equidistantly distributed along the circumference of the second flow guide pipe 22; during use, the two ends of the connecting piece 28 can be connected with the second flow guide pipe 22 and the mixing bin 3 respectively, so as to fix the position of the central flow guide device 2 in the mixing bin 3.

[0036] The specific setting mode of the on-off valve 6 is as follows: as shown in the figure, Figure 6As shown, the switch valve 6 is a plug valve device, which includes a valve body 61 coaxially arranged with the mixing bin 3, the valve body 61 is a shell structure with both top and bottom ends open, and the top and bottom ends of the valve body 61 are respectively communicated with the mixing bin 3 and the aggregate bin 4, and a valve plate 62 capable of opening and closing is further installed in the valve body 61, specifically, the valve plate 62 is coaxially arranged with the valve body 61, and a support structure 63 is installed outside the valve body 61, and a telescopic electric telescopic rod 64 capable of telescoping is installed on the support structure 63, which can be provided as a pneumatic cylinder; and the telescopic end of the electric telescopic rod 64 is connected with the valve plate 62, that is, the plug valve device can be provided as a pneumatic plug valve in the prior art; in use, the valve plate 62 can close the valve body 61 by the extension of the telescopic end of the electric telescopic rod 64; and when the telescopic end of the electric telescopic rod 64 is retracted, the valve plate 62 can open the valve body 61, so that the switch valve 6 can open and close the communication position of the mixing bin 3 and the aggregate bin 4.

[0037] Further, as shown in Figure 6 , the valve plate 62 is provided with a blanking hole 65 coaxially arranged with the valve plate 62, at this time, in the use process, the valve plate 62 remains in a closed state, and blanking can be performed through the blanking hole 65, and since the blanking hole 65 is coaxially arranged with the valve plate 62, it can be ensured that the bulk materials in the mixing bin 3 can normally slide from the center of the communication position of the mixing bin 3 and the aggregate bin 4 to the aggregate bin 4; in addition, the blanking hole 65 can also be provided in different size specifications according to the needs to control the speed of the bulk materials in the mixing bin 3 falling into the aggregate bin 4; in addition, in the cleaning stage after the mixing is completed, when the valve plate 62 is in the process of opening the valve body 61, the bulk materials falling on the valve plate 62 can fall into the aggregate bin 4, so as to reduce the residual amount of bulk materials in the mixing bin 3, facilitate cleaning and save cleaning time.

[0038] Further, as shown in Figure 1 and Figure 2 , the bottom of the mixing bin 3 is funnel-shaped with a wide top and a narrow bottom, and the communication position of the mixing bin 3 and the valve body 61 is adapted to the inner diameter of the valve body 61, so that the valve body 61 can be communicated with the mixing bin 3, and the bulk materials in the mixing bin 3 can be conveniently blanked.

[0039] Further, as shown in Figure 1 and Figure 2 , the bottom of the aggregate bin 4 is funnel-shaped with a wide top and a narrow bottom, and the bottom end of the aggregate bin 4 is provided with an opening, so that in use, the bulk materials in the aggregate bin 4 can be conveniently blanked.

[0040] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the claimed application. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. A central flow type bulk material blending device, comprising vertically distributed blending bins, a material collecting bin coaxially connected below the blending bins, and a plurality of four-side blending pipes installed in the blending bins, wherein a vibrator is installed at the top end of each of the four-side blending pipes, the bottom end of each of the four-side blending pipes is connected to the material collecting bin, and a plurality of through holes are formed in each of the four-side blending pipes. The switch valve capable of being opened and closed is arranged at the position where the mixing bin is communicated with the aggregate bin, and a central flow guide device is arranged in the mixing bin, the central flow guide device comprising a first flow guide pipe coaxially arranged with the mixing bin and having open ends at both sides, a second flow guide pipe having open ends at both sides and being connected with the mixing bin is arranged at the bottom of the first flow guide pipe in a coaxial manner, a plurality of baffle plates are arranged on the first flow guide pipe in a circumferential direction of the first flow guide pipe and vertically, a flow guide channel is formed between each two adjacent baffle plates and the top end opening of the first flow guide pipe and the second flow guide pipe, a connecting plate is arranged between the two baffle plates away from the first flow guide pipe in at least one flow guide channel in a vertical direction, the bottom end of the connecting plate is connected with the second flow guide pipe, and a flow guide plate is arranged in the second flow guide pipe in a one-to-one correspondence with the flow guide channel and is arranged in a downward inclined manner.

2. A central draft type bulk material blending device according to claim 1, characterized in that: A gap is formed between the outer wall of the second flow guide pipe and the inner wall of the mixing bin.

3. A central draft type bulk material blending device according to claim 1 or 2, characterized in that: The connecting plates are arranged between the two baffle plates away from the first flow guide pipe in the plurality of flow guide channels, and the heights of the top ends of the plurality of connecting plates are different.

4. A central draft bulk material blending device according to claim 1, wherein: The heights of the plurality of flow guide plates are different.

5. A central draft bulk material blending device according to claim 1, wherein: The bottom end of the second flow guide pipe is coaxially communicated with a conical material guide pipe having a wide top and a narrow bottom.

6. A central draft bulk material blending device according to claim 2, wherein: The second flow guide pipe and the mixing bin are connected through a plurality of connecting members in a rod-shaped structure.

7. A central draft bulk material blending device according to claim 1, wherein: The switch valve is a plug valve device, the plug valve device comprising a valve body coaxially arranged with the mixing bin, the valve body being a shell structure having open ends at the top and the bottom, and the top and the bottom of the valve body being communicated with the mixing bin and the aggregate bin, respectively, and a valve plate capable of being opened and closed being arranged in the valve body.

8. A central draft bulk material blending device according to claim 7, wherein: The valve plate is provided with a material falling hole coaxially arranged with the valve plate.

9. A central draft bulk material blending device according to claim 7, wherein: The bottom of the mixing bin is in a funnel shape having a wide top and a narrow bottom, and the communication position of the mixing bin and the valve body is adapted to the inner diameter of the valve body; the top of the aggregate bin is in a funnel shape having a narrow top and a wide bottom, and the communication position of the aggregate bin and the valve body is adapted to the inner diameter of the valve body.

10. A central draft bulk material blending device according to claim 9, wherein: The bottom of the aggregate bin is in a funnel shape having a wide top and a narrow bottom, and the bottom end of the aggregate bin is open.

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