Rotor scale distribution pipeline

Abstract

The utility model discloses a rotor scale distribution pipeline, which comprises a bin connecting part, a transition part and a leading-in part, the bin connecting part is fixedly arranged at the bottom of a stock bin and is communicated with the interior of the stock bin, the leading-in part is arranged above a rotor scale and is communicated with an inlet of the rotor scale, the bin connecting part is connected with the transition part through a flow valve and a manual valve, and the transition part is communicated with the interior of the stock bin. The transition part is connected with the leading-in part, an airflow guiding assembly is arranged at the bottom of the transition part, and the airflow guiding assembly forms conveying airflow in the transition part; according to the utility model, the airflow guide assembly is arranged at the pipeline section between the flow valve and the rotor scale, so that stable airflow power is provided for the materials in the pipeline section, the materials are prevented from being accumulated in the transition part, the materials are ensured to be uniformly distributed in the transition part, and the normal metering of the rotor scale is ensured.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, specifically to a rotor scale delivery pipeline. Background Technology

[0002] The rotor scale consists of an annular balance rotor scale, an airlock device, and a microcomputer control unit. Powder material is fed into the annular balance rotor scale through a flow valve. The rotor scale impeller rotates, causing the material to flow evenly within a half-circumference from the inlet to the outlet. Because the scale body adopts a balance structure, at this time, there is material on one side of the disc-shaped scale body and no material on the other half, causing the scale body to lose balance. The weight of the material is detected by the weighing sensor and sent to the control instrument. At the same time, the detected speed signal is sent to the instrument. After processing, the instantaneous flow rate and cumulative amount are obtained. The flow rate can be adjusted by controlling the feeding speed.

[0003] Rotary scales are widely used, especially in cement production. When transporting cement powder, the powder is usually transported by its own weight in the delivery pipeline. However, the flow valve cannot effectively control the material flow rate. Powder often accumulates in the pipeline and then slides down collectively. This causes large fluctuations in the powder flow rate, affecting the normal measurement of the rotary scale, and thus affecting the accuracy and quality stability of cement batching.

[0004] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Utility Model Content

[0005] To address the aforementioned technical deficiencies, the present invention provides a rotor scale delivery pipeline, comprising a hopper connection section, a transition section, and an inlet section. The hopper connection section is fixedly installed at the bottom of the hopper and communicates with the interior of the hopper. The inlet section is installed above the rotor scale and communicates with the inlet of the rotor scale. The hopper connection section is connected to the transition section via a flow valve and a manual valve. The transition section is connected to the inlet section. An airflow guiding component is installed at the bottom of the transition section, and the airflow guiding component forms a conveying airflow within the transition section.

[0006] Preferably, the transition portion includes a transition frame and a bottom plate. The transition frame is configured as a straight extension with a U-shaped cross-section. The transition frame extends obliquely downward from the flow valve toward the inlet portion. A through groove is formed within the transition frame. The opening of the through groove faces downward. The bottom plate is fixed at the opening position of the through groove. The bottom plate is configured as a flat plate extending in the same extension direction as the transition frame to form a straight through cavity within the transition portion.

[0007] Preferably, flange plates are provided at both ends of the transition frame to connect the flow valve and the inlet respectively.

[0008] Preferably, the transition frame is provided with connecting plates at both ends. The connecting plates are straight extensions with an L-shaped cross-section. The extension direction of the connecting plates is consistent with the straight extension direction of the transition frame. The two connecting plates are respectively snapped and fixed to both sides of the bottom plate.

[0009] Preferably, a plurality of vent holes are evenly arranged on the bottom plate, the airflow guiding component is disposed on the bottom plate, a breathable cloth is laid on the bottom plate, the two sides of the breathable cloth are disposed between the connecting plate and the bottom plate to fix the breathable cloth, and the airflow guiding component blows airflow into the passage cavity through the vent holes.

[0010] Preferably, the connecting plate is provided with a first connecting hole, and the bottom plate is provided with a second connecting hole, and the connecting bolt passes through the first connecting hole and the second connecting hole in sequence to connect with the connecting nut.

[0011] Preferably, the airflow guiding assembly includes a fixed frame, a sealing plate, and an airflow pipe. The fixed frame has a U-shaped cross-section, and both ends of the fixed frame are fixedly disposed at the bottom of the bottom plate. The extension direction of the fixed frame is consistent with the extension direction of the transition frame, and both ends of the fixed frame are sealed and connected by the sealing plate to form an airflow cavity between the fixed frame and the bottom plate. The airflow cavity communicates with the passage cavity through the vent hole. The airflow pipe is fixedly disposed at the center of the fixed frame. The outer end of the airflow pipe is connected to an external air source, and the inner end of the airflow pipe is disposed in the airflow cavity. Air is supplied to the airflow cavity through the airflow pipe by the external air source.

[0012] Preferably, the airflow guiding assembly further includes a flow divider plate, which is configured as a U-shaped plate, with both ends of the flow divider plate fixedly mounted on the fixed frame on both sides of the airflow pipe.

[0013] Preferably, the inlet section is provided with a connecting cavity and an inlet cavity. The inlet cavity is vertically arranged, and the lower end of the inlet cavity is connected to the inlet of the rotor scale. The upper end of the inlet cavity is connected to the dust removal pipe. One side of the inlet cavity is connected to the interior of the transition section through the connecting cavity.

[0014] Preferably, a guide plate is provided inside the inlet cavity. The guide plate is a flat plate and is disposed corresponding to the connecting cavity. The lower end of the guide plate is inclined in a direction close to the connecting cavity, and a flow gap is provided between the lower end of the guide plate and the inner wall of the inlet cavity.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting the airflow guiding component in the pipeline section between the flow valve and the rotor scale, this utility model provides stable airflow power to the material in the pipeline section, avoids material accumulation in the transition section, ensures uniform distribution of the material in the transition section, and thus ensures normal measurement of the rotor scale. Attached Figure Description

[0016] Figure 1 A schematic diagram of the connection structure of the delivery pipeline of the rotor scale;

[0017] Figure 2 This is a front view of the cross-sectional structure of the transition section;

[0018] Figure 3 This is a side view of the transition section.

[0019] Figure 4 This is a cross-sectional view of the inlet section.

[0020] The numbers in the image represent:

[0021] 1-Hopper connection section; 2-Transition section; 3-Inlet section; 4-Hopper; 5-Rotor scale; 6-Flow valve; 7-Manual valve; 8-Airflow guide assembly; 9-Dust removal pipe; 21-Transition frame; 22-Bottom plate; 23-Passage cavity; 24-Connecting plate; 25-Breathable cloth; 26-First connecting hole; 27-Second connecting hole; 31-Connecting cavity; 32-Inlet cavity; 33-Guide plate; 81-Fixed frame; 82-Sealing plate; 83-Diverter plate; 84-Airflow pipe; 85-Airflow cavity. Detailed Implementation

[0022] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 A schematic diagram of the connection structure of the delivery pipeline for the rotor scale.

[0025] The rotor scale delivery pipeline of this utility model includes a hopper connection section 1, a transition section 2, and an inlet section 3. The hopper connection section 1 is fixedly installed at the bottom of the hopper 4 and communicates with the interior of the hopper 4. The inlet section 3 is installed above the rotor scale 5 and communicates with the inlet of the rotor scale 5. The hopper connection section 1 is connected to the transition section 2 through a flow valve 6 and a manual valve 7. The transition section 2 is connected to the inlet section 3. An airflow guiding component 8 is provided at the bottom of the transition section 2. The airflow guiding component 8 forms a conveying airflow in the transition section 2 to avoid the accumulation of materials in the transition section 2, thereby ensuring that the materials are introduced into the rotor scale 5 at a uniform speed through the inlet section 3.

[0026] Since the receiving part 1 is located at the bottom of the silo 4, the material in the silo 4 will flow into the receiving part 1 under the action of its own gravity, which has a large force and ensures that the material has a large flow velocity in the receiving part 1. The manual valve 7 can realize the opening and closing of the delivery pipe of the rotor scale 5 of this utility model, so as to realize the flow of material in this utility model. The flow valve 6 can adjust the flow rate of material flowing into the rotor scale 5 through this utility model. Due to the blocking effect of the flow valve 6, the force provided by the silo 4 cannot be fully applied to the material in the transition part 2. Therefore, by setting the airflow guiding component 8, a stable force can be provided in the transition part 2, avoiding the accumulation of material in the transition part 2 and the resulting fluctuation in the flow rate of material delivered to the rotor scale 5.

[0027] This invention provides a stable airflow guide component 8 to the material in the pipeline section between the flow valve 6 and the rotor scale 5, thereby preventing the material from accumulating in the transition section 2 and ensuring that the material is evenly distributed in the transition section 2, thus ensuring the normal measurement of the rotor scale 5.

[0028] Example 2

[0029] like Figure 2 and Figure 3 As shown, Figure 2 This is a front view of the cross-sectional structure of the transition section; Figure 3 This is a side view of the transition section.

[0030] The transition section 2 includes a transition frame 21 and a bottom plate 22. The transition frame 21 is a straight extension with a U-shaped cross-section. The transition frame 21 extends downward from the flow valve 6 to the inlet section 3. A through groove is formed in the transition frame 21 with the opening facing downward. The bottom plate 22 is fixed at the opening of the through groove. The bottom plate 22 is a flat plate extending in the same direction as the transition frame 21, thereby forming a straight through cavity 23 in the transition section 2.

[0031] The transition frame 21 has flange plates at both ends to connect the flow valve 6 and the inlet 3, respectively.

[0032] The transition frame 21 is provided with connecting plates 24 at both ends. The connecting plates 24 are straight extensions with an L-shaped cross-section. The extension direction of the connecting plates 24 is consistent with the straight extension direction of the transition frame 21. The two connecting plates 24 are respectively snapped and fixed on both sides of the bottom plate 22, thereby ensuring the connection and sealing of the transition frame 21 and the bottom plate 22.

[0033] The bottom plate 22 has a plurality of ventilation holes evenly arranged on it. The airflow guiding component 8 is disposed on the bottom plate 22. A breathable cloth 25 is laid on the bottom plate 22. The two sides of the breathable cloth 25 are disposed between the connecting plate 24 and the bottom plate 22 to fix the breathable cloth 25. The airflow guiding component 8 blows airflow into the passage cavity 23 through the ventilation holes, so that the material in the passage cavity 23 flows evenly towards the inlet part 3 with the airflow and its own gravity. The arrangement of the breathable cloth 25 prevents the material from leaking out of the ventilation holes. At the same time, the airflow can also agitate the breathable cloth 25 to avoid the accumulation of material on the breathable cloth 25.

[0034] Generally, the connecting plate 24 is provided with a first connecting hole 26, and the bottom plate 22 is provided with a second connecting hole 27. The connecting bolt passes through the first connecting hole 26 and the second connecting hole 27 in sequence and is connected to the connecting nut, thereby realizing the connection between the connecting plate 24 and the bottom plate 22, and also realizing the clamping and fixing of the edge of the breathable cloth 25.

[0035] The airflow guiding assembly 8 includes a fixed frame 81, a sealing plate 82, a diverter plate 83, and an airflow pipe 84. The fixed frame 81 has a U-shaped cross-section, and both ends of the fixed frame 81 are fixedly disposed at the bottom of the bottom plate 22. The extending direction of the fixed frame 81 is consistent with the extending direction of the transition frame 21, and both ends of the fixed frame 81 are sealed and connected by the sealing plate 82, thereby forming a sealed airflow cavity 85 between the fixed frame 81 and the bottom plate 22. The airflow cavity 85 communicates with the passage cavity 23 through the vent hole. The airflow pipe 84 is fixedly installed in the center. The outer end of the airflow pipe 84 is connected to an external air source, and the inner end of the airflow pipe 84 is located in the airflow cavity 85. The external air source can pass through the airflow pipe 84 into the airflow cavity 85. The diverter plate 83 is set as a U-shaped plate. The two ends of the diverter plate 83 are respectively fixed on the fixed frame 81 on both sides of the airflow pipe 84. The diverter plate 83 diverts the airflow flowing out from the inner end of the airflow pipe 84 to prevent the airflow of the airflow pipe 84 from flowing directly into the passage cavity 23 from the vent closest to the airflow pipe 84.

[0036] Example 3

[0037] like Figure 4 As shown, Figure 4 This is a cross-sectional view of the inlet section. The inlet section 3 is provided with a connecting cavity 31 and an inlet cavity 32. The inlet cavity 32 is vertically arranged, and its lower end is connected to the inlet of the rotor scale 5. The upper end of the inlet cavity 32 is connected to the dust removal pipe 9. One side of the inlet cavity 32 is connected to the interior of the transition section 2 through the connecting cavity 31.

[0038] Due to the configuration of the airflow guiding component 8, the guiding airflow will also enter the inlet 3 through the transition part 2. In order to avoid the airflow affecting the rotor scale 5, the guiding airflow is discharged from the dust removal pipe 9 to prevent the airflow from flowing into the rotor scale 5.

[0039] Preferably, a guide plate 33 is provided inside the inlet cavity 32. The guide plate 33 is a flat plate and is provided corresponding to the connecting cavity 31. The lower end of the guide plate 33 is inclined in a direction close to the connecting cavity 31. A flow gap is provided between the lower end of the guide plate 33 and the inner wall of the inlet cavity 32. The material entering the inlet cavity 32 from the connecting cavity 31 flows into the rotor scale 5 through the flow gap. Due to the obstruction of the material in the flow gap, the airflow will flow more easily to the dust removal pipe 9 above under the action of the guide plate 33, thereby realizing the separation of gas and material.

[0040] Similarly, some of the material carried by the airflow will remain on the guide plate 33 after contacting it and accumulate and fall down, while lighter dust will be discharged from the dust removal pipe 9 under the airflow, thus avoiding the generation of a large amount of smoke and dust at the outlet of the rotor scale 5.

[0041] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A rotor scale delivery pipeline, characterized in that, It includes a receiving section, a transition section, and an inlet section. The receiving section is fixedly installed at the bottom of the silo and communicates with the inside of the silo. The inlet section is installed above the rotor scale and communicates with the inlet of the rotor scale. The receiving section is connected to the transition section through a flow valve and a manual valve. The transition section is connected to the inlet section. An airflow guiding component is provided at the bottom of the transition section, and the airflow guiding component forms a conveying airflow within the transition section.

2. The rotor scale delivery pipeline as described in claim 1, characterized in that, The transition section includes a transition frame and a bottom plate. The transition frame is configured as a straight extension with a U-shaped cross-section. The transition frame extends downward from the flow valve toward the inlet section. A through groove is formed in the transition frame. The opening of the through groove faces downward. The bottom plate is fixed at the opening position of the through groove. The bottom plate is configured as a flat plate extending in the same extension direction as the transition frame to form a straight through cavity in the transition section.

3. The rotor scale delivery pipeline as described in claim 2, characterized in that, The transition frame is provided with flange plates at both ends to connect the flow valve and the inlet, respectively.

4. The rotor scale delivery pipeline as described in claim 2, characterized in that, The transition frame is provided with connecting plates at both ends. The connecting plates are straight extensions with an L-shaped cross-section. The extension direction of the connecting plates is consistent with the straight extension direction of the transition frame. The two connecting plates are respectively snapped and fixed to both sides of the bottom plate.

5. The rotor scale delivery pipeline as described in claim 4, characterized in that, The bottom plate has a number of ventilation holes evenly arranged. The airflow guiding component is disposed on the bottom plate. A breathable cloth is laid on the bottom plate. The two sides of the breathable cloth are disposed between the connecting plate and the bottom plate to fix the breathable cloth. The airflow guiding component blows airflow into the passage cavity through the ventilation holes.

6. The rotor scale delivery pipeline as described in claim 5, characterized in that, The connecting plate is provided with a first connecting hole, and the bottom plate is provided with a second connecting hole. The connecting bolt passes through the first connecting hole and the second connecting hole in sequence and is connected to the connecting nut.

7. The rotor scale delivery pipeline as described in claim 5, characterized in that, The airflow guiding assembly includes a fixed frame, a sealing plate, and an airflow pipe. The fixed frame has a U-shaped cross-section, and both ends of the fixed frame are fixedly disposed at the bottom of the bottom plate. The extension direction of the fixed frame is consistent with the extension direction of the transition frame, and both ends of the fixed frame are sealed and connected by the sealing plate to form an airflow cavity between the fixed frame and the bottom plate. The airflow cavity communicates with the passage cavity through the vent hole. The airflow pipe is fixedly disposed at the center of the fixed frame. The outer end of the airflow pipe is connected to an external air source, and the inner end of the airflow pipe is disposed in the airflow cavity. Air is supplied to the airflow cavity through the airflow pipe by the external air source.

8. The rotor scale delivery pipeline as described in claim 7, characterized in that, The airflow guiding assembly also includes a flow divider plate, which is configured as a U-shaped plate, with both ends of the flow divider plate fixedly mounted on the fixed frame on both sides of the airflow pipe.

9. The rotor scale delivery pipeline as described in claim 1, characterized in that, The inlet section is provided with a connecting cavity and an inlet cavity. The inlet cavity is vertically arranged, and the lower end of the inlet cavity is connected to the inlet of the rotor scale. The upper end of the inlet cavity is connected to the dust removal pipe. One side of the inlet cavity is connected to the interior of the transition section through the connecting cavity.

10. The rotor scale delivery pipeline as described in claim 9, characterized in that, A guide plate is provided inside the inlet cavity. The guide plate is a flat plate and is positioned corresponding to the connecting cavity. The lower end of the guide plate is inclined in a direction close to the connecting cavity, and a flow gap is provided between the lower end of the guide plate and the inner wall of the inlet cavity.

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