CN219097911U

CN219097911U - Double-screw type inert powder conveying mechanism for explosion-proof dust remover

Info

Publication number: CN219097911U
Application number: CN202320097613.6U
Authority: CN
Inventors: 刘岳龙; 陈金福; 蔡凯敏
Original assignee: Dongguan Huile Technology Co ltd
Current assignee: Dongguan Huile Technology Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-05-30
Anticipated expiration: 2033-02-01

Abstract

The utility model relates to the technical field of inert powder conveying, and discloses a double-screw type inert powder conveying mechanism for an explosion-proof dust remover, which comprises a bearing seat, wherein the bearing seat is provided with: a hopper for feeding inert powder, a first screw and a second screw for conveying the inert powder, wherein screw teeth of the first screw are engaged with screw teeth of the second screw in a staggered manner, so that a self-cleaning effect is achieved; and a stepping motor for providing driving force to the first screw and the second screw; stirring blades for stirring the inert powder are arranged in the hopper; the double-screw type inert powder conveying mechanism for the explosion-proof dust remover utilizes a double-screw thread staggered engagement mode to generate a self-cleaning effect, and adopts a proximity sensor to detect the rotation speed and the rotation number or combines a weighing sensor to obtain higher conveying precision.

Description

Double-screw type inert powder conveying mechanism for explosion-proof dust remover

Technical Field

The utility model relates to the technical field of inert powder conveying, in particular to a double-screw type inert powder conveying mechanism for an explosion-proof dust remover.

Background

The explosion-proof dust remover is inadvisable that dust in the operation working condition is led into an electric load to induce explosion danger; when the electric load and the elements are in current transmission contact during the operation of the dust remover, electric shock sparks are inevitably generated even in the conduction process, and the discharge sparks induce dust source gas explosion exceeding the limit concentration, which is also a very easy occurrence;

inert protection is based on the principle of intrinsic safety of dust explosion, and by reducing the oxygen content or the concentration of combustible dust in an explosion system, preventing the autonomous propagation of flame, and is a method for preventing the possibility of explosion and weakening the severity of explosion;

the following problems exist in the market at present: the existing inert powder conveying mechanism for the explosion-proof dust remover has the defects that powder is easy to adhere to a conveying screw rod and is difficult to clean; the conveying precision of the powder is low;

the utility model aims to solve the technical problems that: the double-screw type inert powder conveying mechanism has a self-cleaning function and high conveying precision.

Disclosure of Invention

The utility model aims to solve the technical problems that: the double-screw inert powder conveying mechanism with the self-cleaning function and higher conveying precision is provided, and the first screw and the second screw with the same rotation direction are adopted, so that powder can be prevented from being adhered to the screws in the rotation conveying process; the rotation speed and the rotation number of the first screw rod and the second screw rod are measured by adopting a proximity sensor, or a mode of combining a weighing sensor is adopted to obtain higher conveying precision.

The utility model provides a double screw type inert powder conveying mechanism for explosion-proof dust remover, includes the carrier seat, is equipped with on the carrier seat: the hopper is used for feeding inert powder, the inert powder is conveyed and rotated by the first screw rod and the second screw rod with the same direction, and screw teeth of the first screw rod are meshed with screw teeth of the second screw rod in a staggered manner, so that a self-cleaning effect is achieved; and a stepping motor for providing driving force to the first screw and the second screw; and the head end of the first screw rod and the head end of the second screw rod are respectively provided with a proximity sensor for detecting the rotating speed of the first screw rod and the second screw rod.

Preferably, stirring blades for stirring the inert powder are arranged in the hopper.

Preferably, the rotating shaft of the stepping motor is connected with a speed reducer; the speed reducer is connected with a transmission gear box; and the transmission gear box drives the first screw rod, the second screw rod and the stirring blade to move at the same time.

Preferably, the bearing seat is provided with a weighing sensor; the weighing sensor is provided with a bearing plate; and the hopper, the transmission gear box, the first screw, the second screw, the speed reducer and the stepping motor are all arranged on the bearing plate.

Preferably, the transmission gearbox comprises: the stirring device comprises a first driven gear connected with the tail end of a stirring blade, a second driven gear connected with the tail end of a first screw rod, a third driven gear connected with the tail end of a second screw rod and a driving gear connected with the output end of a speed reducer; and the first driven gear, the second driven gear and the third driven gear are respectively meshed with the driving gear.

Preferably, the hopper is hemispherical; the bottom of the hopper is provided with a screw cavity communicated with the hopper; the first screw rod and the second screw rod are both arranged in the screw rod cavity; and the head end of the screw cavity is provided with a discharge hole communicated with the screw cavity.

Compared with the prior art, the utility model has the beneficial effects that: the double-screw type inert powder conveying mechanism for the explosion-proof dust remover utilizes a double-screw thread staggered engagement mode to generate a self-cleaning effect, and adopts a proximity sensor to detect the rotation speed and the rotation number or combines a weighing sensor to obtain higher conveying precision.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a schematic view of the internal structure of the transmission gear box of the present utility model.

Fig. 3 is a schematic view of another angular configuration of fig. 2 according to the present utility model.

Fig. 4 is a schematic view of the exploded construction of fig. 1 according to the present utility model.

FIG. 5 is a schematic view of the structure of the present utility model in which the first screw and the second screw are intermeshed.

FIG. 6 is a schematic view of the stirring blade structure of the present utility model.

In the figure: a bearing seat 1; a hopper 2; a first screw 3; a second screw 4; a stepping motor 5; stirring blades 6; a proximity sensor 7; a decelerator 9; a transmission gear box 10; a load cell 11; a carrier plate 12; a first driven gear 13; a second driven gear 14; a third driven gear 15; a drive gear 16; a screw cavity 17; a discharge port 18; a connecting rod portion 19; a first stirring section 20; a second stirring section 21.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 6, in an embodiment of the present utility model, a twin-screw type inert powder conveying mechanism for an explosion-proof dust collector includes a bearing seat 1, where the bearing seat 1 is provided with: the hopper 2 for the inert powder to enter carries the first screw 3 and the second screw 4 with the same rotation direction, and the screw teeth of the first screw 3 and the screw teeth of the second screw 4 are engaged in a staggered manner so as to play a self-cleaning role; and a stepping motor 5 for supplying driving force to the first screw 3 and the second screw 4; the head end of the first screw 3 and the head end of the second screw 4 are both provided with a proximity sensor 7 for detecting the rotational speed thereof.

Specifically, the screw teeth of the first screw 3 and the second screw 4 can convey the inert powder when rotating, and simultaneously, the screw teeth of the first screw 3 and the screw teeth of the second screw 4 are meshed in a staggered manner, and the rotation directions of the first screw 3 and the second screw 4 are the same, so that the inert powder on the screw teeth can be self-cleaned, and the inert powder is prevented from being stuck on the screw teeth to influence the conveying; the cleaning effect is better by adopting the same rotation direction relative to different rotation directions, and powder can be adhered to the meshing position of the screw teeth when adopting different rotation directions; the proximity sensors 7 are arranged for the first screw 3 and the second screw 4, the rotation speeds of the first screw 3 and the second screw 4 can be detected at the same time, the rotation speeds are monitored in real time, and the proximity sensors 7 are connected with an upper computer, so that real-time rotation speed data and rotation number data are obtained; after long-time use statistics, the number of turns matched with the inert powder when a certain amount of inert powder needs to be conveyed can be obtained, and better conveying precision can be obtained by combining the real-time weighing of the weighing sensor 11.

The conveying mechanism can convey various powder, and the conveyed powder amount is controllable; the mechanism can be carried on an industrial powder sprayer and is matched with industrial dust removing equipment (an explosion-proof dust remover), when the industrial dust removing equipment is used for treating inflammable and explosive dust, the powder conveyed by the mechanism has an inerting effect, and the activity of the treated powder is reduced, so that the safe dust removing effect is achieved; meanwhile, the equipment can also cover powder on the filter material of the industrial dust removing equipment, so as to protect the filter material and improve the service performance of the dust removing equipment; for example, a fixed amount of inert powder is filled into the hopper 1, the inert powder is conveyed from the discharge port to the required equipment according to the adding requirement, the weighing sensor 5 weighs in real time, the proximity sensor 11 detects the revolution number in real time, and the speed reducing motor stops rotating when the set weight or revolution number is reached.

Further, a stirring blade 6 for stirring the inert powder is arranged in the hopper 2;

preferably, the stirring blade 6 includes a connecting rod portion 19 connected to the first driven gear 13, and a first stirring portion 20 and a second stirring portion 21 provided at both ends of the connecting rod portion 19, respectively; the first stirring section 20 and the second stirring section 21 are rotationally symmetrical and each have a semi-arc shape.

Specifically, the clearance between stirring leaf 6 that is equipped with and the inner wall of hopper 2 is about 3mm, stirs along the inner wall cambered surface promptly, in the rotation in-process, can effectively avoid the corner of hopper 2 to pile up the powder.

Further, a rotating shaft of the stepping motor 5 is connected with a speed reducer 9; and the speed reducer 9 is connected with a transmission gearbox 10; and the transmission gear box 10 drives the first screw 3, the second screw 4 and the stirring blade 6 to move at the same time.

Further, the load bearing seat 1 is provided with a weighing sensor 11; the load cell 11 is provided with a bearing plate 12; and the hopper 2, the transmission gear box 10, the first screw 3, the second screw 4, the speed reducer 9 and the stepping motor 5 are all arranged on the bearing plate 12.

Specifically, the speed reducer 9, the stepper motor 5 and the weighing sensor 11 may be purchased in the market, for example, the speed reducer 9 may be a spiral planetary speed reducer 9, the proximity sensor 11 may be a photoelectric proximity sensor, and the weighing sensor 11 may be a single-point weighing sensor 11; the load cell 11 should be connected to an upper computer so as to obtain real-time weighing data.

Further, the transmission gear box 10 includes: a first driven gear 13 connected with the tail end of the stirring blade 6, a second driven gear 14 connected with the tail end of the first screw rod 3, a third driven gear 15 connected with the tail end of the second screw rod 4, and a driving gear 16 connected with the output end of the speed reducer 9; and the first driven gear 13, the second driven gear 14, and the third driven gear 15 are respectively engaged with the driving gear 16.

Specifically, the stepping motor 5 is connected with the input end of the speed reducer 9, the rotation of the rotating shaft of the stepping motor 5 drives the speed reducer 9 to rotate, and the output end of the speed reducer 9 drives the driving gear 16 to rotate; and the driving gear 16 simultaneously rotates the first driven gear 13, the second driven gear 14 and the third driven gear 15 meshed with the driving gear 16, so that the stirring blade 6, the first screw 3 and the second screw 4 are respectively rotated; the second driven gear 14 and the third driven gear 15 rotate in the same direction, so that the first screw 3 and the second screw 4 also rotate in the same direction.

Further, the hopper 2 is hemispherical; the bottom of the hopper 2 is provided with a screw cavity 17 communicated with the hopper; and the first screw 3 and the second screw 4 are both arranged inside the screw cavity 17; and the head end of the screw cavity 17 is formed with a discharge port 18 communicated with the screw cavity;

specifically, inert powder enters the screw cavity 17 from the hopper 2, is conveyed by the first screw 3 and the second screw 4, and is discharged from the discharge port 18.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The utility model provides a double screw type inert powder conveying mechanism for explosion-proof dust remover, includes and bears the seat, its characterized in that bears and is equipped with on the seat: the hopper is used for feeding inert powder, the inert powder is conveyed and rotated by the first screw rod and the second screw rod with the same direction, and screw teeth of the first screw rod are meshed with screw teeth of the second screw rod in a staggered manner, so that a self-cleaning effect is achieved; and a stepping motor for providing driving force to the first screw and the second screw; and the head end of the first screw rod and the head end of the second screw rod are respectively provided with a proximity sensor for detecting the rotating speed of the first screw rod and the second screw rod.

2. The double-screw type inert powder conveying mechanism for an explosion-proof dust remover according to claim 1, wherein stirring blades for stirring inert powder are arranged in the hopper.

3. The double-screw type inert powder conveying mechanism for the explosion-proof dust remover according to claim 2, wherein a rotating shaft of the stepping motor is connected with a speed reducer; the speed reducer is connected with a transmission gear box; and the transmission gear box drives the first screw rod, the second screw rod and the stirring blade to move at the same time.

4. A double-screw type inert powder conveying mechanism for an explosion-proof dust remover according to claim 3, wherein a weighing sensor is arranged on the bearing seat; the weighing sensor is provided with a bearing plate; and the hopper, the transmission gear box, the first screw, the second screw, the speed reducer and the stepping motor are all arranged on the bearing plate.

5. A twin screw inert powder feed mechanism for an explosion proof dust collector as set forth in claim 3, wherein the drive gear box comprises: the stirring device comprises a first driven gear connected with the tail end of a stirring blade, a second driven gear connected with the tail end of a first screw rod, a third driven gear connected with the tail end of a second screw rod and a driving gear connected with the output end of a speed reducer; and the first driven gear, the second driven gear and the third driven gear are respectively meshed with the driving gear.

6. The double-screw type inert powder conveying mechanism for an explosion-proof dust remover according to claim 1, wherein the hopper is hemispherical; the bottom of the hopper is provided with a screw cavity communicated with the hopper; the first screw rod and the second screw rod are both arranged in the screw rod cavity; and the head end of the screw cavity is provided with a discharge hole communicated with the screw cavity.