Quantitative feeding device for rotary furnace

Abstract

The quantitative feeding device for the rotary furnace comprises a base, an electronic metering scale is fixed on the upper surface of the base, a plurality of supporting legs are fixed on the upper surface of the electronic metering scale, the top ends of the supporting legs are jointly and fixedly connected with a stock bin, the bottom of the stock bin is in a conical hopper shape, a discharging pipe is fixedly connected to the bottom of the stock bin, and the discharging pipe is fixedly connected with the base. A discharging assembly is installed in the middle of the stock bin. The base, the electronic metering scale, the supporting legs, the stock bin, the discharging pipe and the discharging assembly are arranged, after raw material ammonium paratungstate for producing tungsten oxide is put into the stock bin, the electronic metering scale can measure the amount of the raw material in the stock bin, and the raw material in the stock bin can be slowly discharged through the discharging assembly; in the process, the electronic metering scale can monitor the remaining amount in the stock bin in real time, and the amount of the added raw materials is obtained by subtracting the remaining amount from the weight of the original materials in the stock bin, so that automatic quantitative adding is achieved, manual weighing is omitted, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tungsten oxide processing, in particular to a quantitative feeding device for a rotary furnace. Background Art

[0002] Tungsten oxide is a powder metallurgy raw material for producing cemented carbide and tungsten products. Tungsten oxide can show a variety of colors, and the specific color depends on its crystal structure and morphology. Tungsten oxide is produced by calcining in a rotary kiln. During production, ammonium paratungstate (APT) is quantitatively added to the rotary kiln, and different tungsten oxide products are obtained by controlling different temperature and atmosphere conditions.

[0003] At present, when adding ammonium paratungstate (APT) raw materials, a certain amount of ammonium paratungstate (APT) is weighed manually, and then the ammonium paratungstate (APT) is added into the rotary kiln from the feed port of the rotary kiln. However, manual weighing is required every time, which will affect the efficiency of feeding. In addition, during the operation of the rotary kiln, the temperature of the feed port is very high. There are certain safety risks in manually adding ammonium paratungstate (APT) raw materials to the feed port. In addition, since the feed port is designed to be open, when adding ammonium paratungstate (APT) powder, the powder is easy to float around, affecting the on-site environment. Therefore, the utility model proposes a quantitative feeding device for a rotary kiln. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a quantitative feeding device for a rotary kiln.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quantitative feeding device for a rotary kiln, comprising a base, an electronic weighing scale is fixed on the upper surface of the base, a plurality of supporting feet are fixed on the upper surface of the electronic weighing scale, a silo is fixedly connected to the top of the plurality of supporting feet, the bottom of the silo is cone-shaped, and a feed pipe is fixedly connected to the bottom of the silo, a discharge assembly is installed in the middle of the silo, the bottom end of the feed pipe is bent, and an extension pipe is slidably sleeved on the bottom surface of the feed pipe, a dustproof assembly is slidably sleeved on the bottom surface of the extension pipe, a control cabinet is installed on the upper surface of the base, and a plurality of universal wheels are fixed to the lower surface of the base.

[0006] Furthermore, a feeding port is provided on one side of the top of the silo.

[0007] Furthermore, the discharge assembly includes a reduction motor fixed to the upper surface of the silo, the bottom output end of the reduction motor is fixedly connected to a vertical shaft, the bottom surface of the vertical shaft is fixedly connected to an auger, the auger is located inside the discharge pipe, and the reduction motor and the electronic weighing scale are electrically connected to the control cabinet.

[0008] Furthermore, an annular plate is fixed on the surface of the feed tube and located above the extension tube, and a tension spring is fixedly connected to the lower surface of the annular plate and the top end of the extension tube.

[0009] Furthermore, a first locking bolt passes through and is threadedly connected to the side wall at the top end of the extension tube.

[0010] Furthermore, the bottom end surface of the extension tube is provided with an external thread, and the bottom end surface of the extension tube is rotatably connected to a bottom cover through the thread.

[0011] Furthermore, the dustproof component includes a sleeve slidably sleeved on the surface of the extension tube, a shielding plate is fixedly connected to the bottom end of the sleeve, and a second locking bolt passes through and is threadedly connected to the side wall of the sleeve.

[0012] Beneficial effects of the utility model:

[0013] When the utility model is in use, the quantitative feeding device for a rotary kiln is provided with a base electronic weighing scale, supporting feet, a silo, a feeding pipe and a discharging component. After ammonium paratungstate, a raw material for producing tungsten oxide, is put into the silo, the electronic weighing scale will measure the amount of the raw material in the silo, and the raw material in the silo can be slowly discharged through the discharging component. During this process, the electronic weighing scale will monitor the remaining amount in the silo in real time, and the weight of the original material in the silo minus the remaining amount is the amount of the added raw material, thereby realizing automatic quantitative addition, eliminating manual weighing, and improving feeding efficiency.

[0014] When the utility model is in use, the quantitative feeding device for a rotary kiln is provided with an extension pipe and a dustproof component. The extension pipe can move along the feeding pipe and extend into the feeding port of the rotary kiln, and then the dustproof component is moved to cover the top of the feeding port of the rotary kiln. In this way, during the feeding process, the ammonium paratungstate powder will not be scattered, thereby protecting the on-site environment and ensuring the safety of the feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : The overall stereogram of the utility model;

[0017] Figure 2 : An overall cross-sectional view of the utility model;

[0018] Figure 3 :The utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 :The utility model Figure 2 Enlarged view of point B in the middle.

[0020] The reference numerals are as follows:

[0021] 1. Base; 2. Electronic weighing scale; 3. Support foot; 4. Silo; 41. Feeding port; 5. Feeding pipe; 51. Ring plate; 52. Tension spring; 6. Discharge assembly; 61. Reducer motor; 62. Vertical axis; 63. Auger; 7. Extension pipe; 71. First locking bolt; 8. Dustproof assembly; 81. Sleeve; 82. Shielding plate; 83. Second locking bolt; 9. Bottom cover; 10. Universal wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 4 As shown, it relates to a quantitative feeding device for a rotary kiln, including a base 1, an electronic weighing scale 2 is fixed on the upper surface of the base 1, a plurality of supporting legs 3 are fixed on the upper surface of the electronic weighing scale 2, a silo 4 is fixedly connected to the top of the plurality of supporting legs 3, the bottom of the silo 4 is cone-shaped, and a feed pipe 5 is fixedly connected to the bottom of the silo 4, a discharge assembly 6 is installed in the middle of the silo 4, the bottom end of the feed pipe 5 is bent, and an extension pipe 7 is slidably sleeved on the bottom surface of the feed pipe 5, and a dustproof assembly 8 is slidably sleeved on the bottom surface of the extension pipe 7, a control cabinet is installed on the upper surface of the base 1, and a plurality of universal wheels 10 are fixed to the lower surface of the base 1.

[0024] A feeding port 41 is provided at one side of the top of the silo 4 . The ammonium paratungstate (APT) powder raw material can be added into the silo 4 through the feeding port 41 .

[0025] The discharge assembly 6 includes a reduction motor 61 fixed to the upper surface of the silo 4, the bottom output end of the reduction motor 61 is fixedly connected to a vertical shaft 62, the bottom surface of the vertical shaft 62 is fixedly connected to an auger 63, the auger 63 is located inside the discharge pipe 5, and the reduction motor 61 and the electronic weighing scale 2 are both electrically connected to the control cabinet.

[0026] The weight of the material inside the silo 4 can be monitored in real time by the electronic weighing scale 2 , and the weight information is fed back to the control cabinet, which controls the reduction motor 61 to drive the auger 63 to rotate, and the material in the silo 4 is discharged from the discharge pipe 5 through the auger 63 .

[0027] An annular plate 51 is fixed on the surface of the feeding tube 5 and located above the extension tube 7 , and a tension spring 52 is fixedly connected to the lower surface of the annular plate 51 and the top end of the extension tube 7 .

[0028] The extension tube 7 can be pulled by the tension spring 52 so that the extension tube 7 will not be separated from the discharge tube 5. When the device is not in use, the extension tube 7 can be completely sleeved on the surface of the discharge tube 5.

[0029] A first locking bolt 71 penetrates through and is threadedly connected to the side wall of the top end of the extension tube 7 .

[0030] The extension tube 7 can be moved downward along the feed pipe 5 until the bottom of the extension tube 7 extends into the feed port of the rotary kiln, and then the first locking bolt 71 is tightened to fix the extension tube 7 .

[0031] The bottom surface of the extension tube 7 is provided with an external thread, and the bottom surface of the extension tube 7 is connected with a bottom cover 9 by thread rotation. The bottom cover 9 can seal the bottom of the extension tube 7, and the bottom cover 9 can be screwed off when adding materials.

[0032] The dustproof assembly 8 includes a sleeve 81 slidably sleeved on the surface of the extension tube 7 , a shielding plate 82 is fixedly connected to the bottom end of the sleeve 81 , and a second locking bolt 83 penetrates and is threadedly connected to the side wall of the sleeve 81 .

[0033] When the bottom of the extension tube 7 extends into the feed port of the rotary kiln, the sleeve 81 can be slid along the extension tube 7 so that the baffle plate 82 covers the top of the feed port of the rotary kiln, thereby ensuring the safety of feeding and preventing the powdered ammonium paratungstate (APT) from scattering during the feeding process.

[0034] Working principle: first add ammonium paratungstate (APT) powder into the silo 4 through the feeding port 41, then move the device to the feeding port of the rotary kiln, and after unscrewing the bottom cover 9, move the extension tube 7 so that the bottom of the extension tube 7 extends into the feeding port of the rotary kiln, then tighten the first locking bolt 71 to fix the extension tube 7, then move the sleeve 81 so that the baffle plate 82 is located above the feeding port of the rotary kiln, and tighten the second locking bolt 83 to fix the sleeve 81. When feeding, the amount of feeding is set through the control cabinet, and the reduction motor 61 will drive the auger 63 to rotate, so that the ammonium paratungstate (APT) powder inside the silo 4 is discharged from the discharge pipe 5, and the powder enters the feeding port of the rotary kiln along the extension pipe 7. During this process, the electronic weighing scale 2 monitors the amount of feeding in real time. When the feeding amount reaches the preset value, the reduction motor 61 stops working.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quantitative feeding device for a rotary kiln, comprising a base (1), characterized in that: An electronic weighing scale (2) is fixed on the upper surface of the base (1), a plurality of supporting legs (3) are fixed on the upper surface of the electronic weighing scale (2), a silo (4) is fixedly connected to the top of the plurality of supporting legs (3), the bottom of the silo (4) is cone-shaped, a discharge pipe (5) is fixedly connected to the bottom of the silo (4), a discharge assembly (6) is installed in the middle of the silo (4), the bottom end of the discharge pipe (5) is bent, an extension pipe (7) is slidably sleeved on the bottom surface of the discharge pipe (5), a dustproof assembly (8) is slidably sleeved on the bottom surface of the extension pipe (7), a control cabinet is installed on the upper surface of the base (1), and a plurality of universal wheels (10) are fixed on the lower surface of the base (1).

2. A quantitative feeding device for a rotary kiln according to claim 1, characterized in that: A feeding port (41) is provided on one side of the top end of the silo (4).

3. The quantitative feeding device for a rotary kiln according to claim 1, characterized in that: The discharge assembly (6) comprises a reduction motor (61) fixed to the upper surface of the silo (4); a vertical shaft (62) is fixedly connected to the bottom output end of the reduction motor (61); an auger (63) is fixedly connected to the bottom surface of the vertical shaft (62); the auger (63) is located inside the discharge pipe (5); and the reduction motor (61) and the electronic weighing scale (2) are both electrically connected to the control cabinet.

4. The quantitative feeding device for a rotary kiln according to claim 1, characterized in that: An annular plate (51) is fixed on the surface of the feed tube (5) and located above the extension tube (7), and a tension spring (52) is fixedly connected between the lower surface of the annular plate (51) and the top end of the extension tube (7).

5. The quantitative feeding device for a rotary kiln according to claim 1, characterized in that: A first locking bolt (71) passes through and is threadedly connected to the side wall of the top end of the extension tube (7).

6. The quantitative feeding device for a rotary kiln according to claim 1, characterized in that: The bottom end surface of the extension tube (7) is provided with an external thread, and the bottom end surface of the extension tube (7) is rotatably connected to a bottom cover (9) via the thread.

7. The quantitative feeding device for a rotary kiln according to claim 1, characterized in that: The dustproof component (8) comprises a sleeve (81) slidably sleeved on the surface of the extension tube (7), a shielding plate (82) being fixedly connected to the bottom end of the sleeve (81), and a second locking bolt (83) penetrating and threadedly connected to the side wall of the sleeve (81).

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