Tail gas recovery device of jet mill

Abstract

The utility model discloses a jet mill tail gas recovery device which comprises a jet mill and a dust remover, the output end of the jet mill is fixedly connected with a first connecting pipe, the output end of the first connecting pipe is provided with a cyclone separator, the first output end of the cyclone separator is fixedly connected with a second connecting pipe, and the second connecting pipe is fixedly connected with the dust remover. And the second output end of the cyclone separator is fixedly connected with a third connecting pipe, the output end of the third connecting pipe is provided with a collecting box, and the output end of the second connecting pipe is provided with a first fan. According to the tail gas recovery device of the jet mill, by arranging the dust falling mechanism, tail gas is temporarily stored in the tank body, a water pump and a water tank provide water liquid for a spray head, a motor drives the spray head in a rotating state to spray the water liquid into the tank body, and then suspended particles in the tail gas in the tank body are subjected to dust falling; and therefore, the effect of reducing the dust of small-diameter suspended particulate matters in the tail gas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow pulverizers, in particular to an air flow pulverizer tail gas recovery device. Background Art

[0002] Air flow mill is a kind of crushing processing equipment, which is widely used in chemical, mineral, metallurgy, abrasive, ceramic, refractory and other industries.

[0003] The air flow mill, cyclone separator, dust collector and fan form a complete pulverizing system. After the compressed air is filtered and dried, it is sprayed into the pulverizing chamber at high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the material is repeatedly collided, rubbed, sheared and pulverized. The pulverized material moves to the grading area with the rising airflow under the suction of the fan. Under the strong centrifugal force generated by the high-speed rotating grading turbine, the coarse and fine materials are separated. The fine particles that meet the particle size requirements enter the cyclone separator and dust collector for collection through the grading wheel, and the coarse particles fall into the pulverizing area for further pulverization. However, the exhaust gas generated after the material is pulverized will always carry suspended particulate matter, and the dust collector usually filters the materials with higher particle density in the exhaust gas, and fails to achieve the effect of reducing dust on suspended particulate matter with small diameters in the exhaust gas. Utility Model Content

[0004] The utility model aims to provide an exhaust gas recovery device for an air flow mill to solve at least one technical problem in the above-mentioned background technology that the existing exhaust gas filtering structure fails to achieve the effect of dust reduction of small-diameter suspended particulate matter in the exhaust gas.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tail gas recovery device for a jet mill, comprising:

[0007] An air flow pulverizer and a dust collector, wherein the output end of the air flow pulverizer is fixedly connected with a first connecting pipe, a cyclone separator is installed at the output end of the first connecting pipe, the first output end of the cyclone separator is fixedly connected with a second connecting pipe, and the second output end of the cyclone separator is fixedly connected with a third connecting pipe, a collecting box is installed at the output end of the third connecting pipe, a first fan is installed at the output end of the second connecting pipe, and a dust reduction mechanism is installed at the output end of the first fan, the dust reduction mechanism is used to reduce dust on suspended particles in exhaust gas; the dust reduction mechanism includes a nozzle, a tank assembly, a water supply assembly, a drive assembly and an exhaust assembly; the tank assembly is used to temporarily store exhaust gas; the water supply assembly is used to provide water to the nozzle; the drive assembly is used to drive the nozzle to rotate, and the rotating nozzle is used to drive the water to spray the exhaust gas; the exhaust assembly is used to extract the exhaust gas after dust reduction inside the tank assembly.

[0008] Preferably, the tank body assembly includes an air inlet pipe, a tank body, an air inlet, an air outlet and a water outlet pipe; the input end of the air inlet pipe is fixedly connected to the output end of the first fan, the air inlet is fixedly connected to one end of the outer wall of the tank body, and the output end of the air inlet pipe is connected to the input end of the air inlet, the air outlet and the water outlet pipe are both fixedly connected to the other end of the outer wall of the tank body, and the air outlet is located above the water outlet pipe.

[0009] Preferably, the water supply assembly includes a water inlet pipe, a water tank, a water pump and a water suction pipe; the water tank is installed on the outside of the tank body, the water pump is installed on the top of the water tank, the input end of the water suction pipe is connected to the output end of the water tank, the output end of the water suction pipe is connected to the input end of the water pump, the input end of the water inlet pipe is connected to the output end of the water pump, and the output end of the water inlet pipe passes through the interior of the tank body.

[0010] Preferably, the driving assembly includes a motor, a transmission gear, a rotating rod and a connecting gear; the motor is installed on the top of the tank body, the transmission gear is assembled on the end of the output shaft of the motor, the rotating rod is rotatably installed on the output end of the water inlet pipe, and the rotating rod is a hollow structure, the connecting gear is assembled on the outer wall of the rotating rod, and the transmission gear is meshed with the connecting gear.

[0011] Preferably, the exhaust assembly includes a second fan and an outlet pipe; the second fan is installed at the output end of the air outlet, the outlet pipe is fixedly connected to the output end of the second fan, and the output end of the outlet pipe is fixedly connected to the input end of the dust collector.

[0012] Preferably, the nozzle is installed at the output end of the rotating rod, the transmission gear and the connecting gear in a meshing state are used to drive the rotating rod to rotate, and the rotating rod in a rotating state is used to drive the nozzle to rotate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model sets a dust reduction mechanism so that the tank temporarily stores the exhaust gas, and the water pump and the water tank provide water to the nozzle. The motor drives the rotating nozzle to spray the water on the inside of the tank, thereby reducing the dust on the suspended particles in the exhaust gas inside the tank, thereby achieving the effect of reducing the dust on the small-diameter suspended particles in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2This is a schematic diagram of the structure of the spray mechanism of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the spray mechanism of the utility model from another perspective;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the tank body of the utility model.

[0019] In the figure: 1. air flow pulverizer; 2. first connecting pipe; 3. cyclone separator; 4. second connecting pipe; 5. collecting box; 6. third connecting pipe; 7. first fan; 8. dust suppression mechanism; 801. air inlet pipe; 802. tank body; 803. motor; 804. water inlet pipe; 805. water tank; 806. water pump; 807. water suction pipe; 808. second fan; 809. air outlet pipe; 8010. air inlet; 8011. air outlet; 8012. water outlet pipe; 8013. transmission gear; 8014. rotating rod; 8015. connecting gear; 8016. nozzle; 9. dust collector. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] 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 in 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.

[0024] See also Figure 1-4 , the utility model provides an embodiment of a tail gas recovery device for a jet mill:

[0025] A tail gas recovery device for a jet mill, comprising:

[0026] The air flow pulverizer 1 and the dust collector 9, the output end of the air flow pulverizer 1 is fixedly connected with the first connecting pipe 2, the output end of the first connecting pipe 2 is installed with a cyclone separator 3, the first output end of the cyclone separator 3 is fixedly connected with the second connecting pipe 4, and the second output end of the cyclone separator 3 is fixedly connected with the third connecting pipe 6, the output end of the third connecting pipe 6 is installed with a collecting box 5, the output end of the second connecting pipe 4 is installed with a first fan 7, the output end of the first fan 7 is installed with a dust reduction mechanism 8, the dust reduction mechanism 8 is used to reduce the suspended particles in the exhaust gas; the dust reduction mechanism 8 includes a nozzle 8016, a tank assembly, a water supply The tank assembly is used for temporarily storing the exhaust gas; the water supply assembly is used for providing water to the nozzle 8016; the driving assembly is used for driving the nozzle 8016 to rotate, and the rotating nozzle 8016 is used to drive the water to spray the exhaust gas; the exhaust assembly is used to extract the exhaust gas after the dust reduction is completed inside the tank assembly; the tank assembly includes an air inlet pipe 801, a tank 802, an air inlet 8010, an air outlet 8011 and a water outlet pipe 8012; the input end of the air inlet pipe 801 is fixedly connected to the output end of the first fan 7, and the air inlet 8010 is fixedly connected to the tank 8 02, and the output end of the air inlet pipe 801 is connected to the input end of the air inlet 8010, the air outlet 8011 and the water outlet pipe 8012 are fixedly connected to the other end of the outer wall of the tank body 802, and the air outlet 8011 is located above the water outlet pipe 8012; the water supply component includes a water inlet pipe 804, a water tank 805, a water pump 806 and a water pumping pipe 807; the water tank 805 is installed on the outside of the tank body 802, the water pump 806 is installed on the top of the water tank 805, the input end of the water pumping pipe 807 is connected to the output end of the water tank 805, and the output end of the water pumping pipe 807 is connected to the input end of the water pump 806, The input end of the water inlet pipe 804 is connected to the output end of the water pump 806, and the output end of the water inlet pipe 804 passes through the interior of the tank body 802; the driving assembly includes a motor 803, a transmission gear 8013, a rotating rod 8014 and a connecting gear 8015; the motor 803 is installed on the top of the tank body 802, the transmission gear 8013 is assembled on the end of the output shaft of the motor 803, the rotating rod 8014 is rotatably installed on the output end of the water inlet pipe 804, and the rotating rod 8014 is a hollow structure, the connecting gear 8015 is assembled on the outer wall of the rotating rod 8014, and the transmission gear 8013 is meshed with the connecting gear 8015.

[0027] In one embodiment, the exhaust assembly includes a second fan 808 and an outlet pipe 809; the second fan 808 is installed at the output end of the air outlet 8011, the outlet pipe 809 is fixedly connected to the output end of the second fan 808, and the output end of the outlet pipe 809 is fixedly connected to the input end of the dust collector 9.

[0028] In one of the preferred embodiments, the nozzle 8016 is installed at the output end of the rotating rod 8014, the transmission gear 8013 and the connecting gear 8015 in a meshing state are used to drive the rotating rod 8014 to rotate, and the rotating rod 8014 in a rotating state is used to drive the nozzle 8016 to rotate.

[0029] The working principle of the utility model is as follows: after the compressed air is filtered and dried, it is sprayed into the crushing chamber at a high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the material is repeatedly collided, rubbed, sheared and crushed. The crushed material moves to the grading area with the rising airflow under the suction force of the first fan 7. Under the strong centrifugal force generated by the high-speed rotating grading turbine, the coarse and fine materials are separated. The fine particles that meet the particle size requirements enter the cyclone separator 3 and the dust collector 9 for collection through the grading wheel, and the coarse particles fall to the crushing area for further crushing. At this time, the exhaust gas generated by the crushed material in the process will be sucked into the tank body 802 through the first fan 7, and the tank body 802 temporarily stores the exhaust gas, and then the water pump 806, the second fan 808 and the motor 803 are powered on to operate, so that the running water pump 806 can pump the water source liquid in the water tank 805 through the suction pipe 807. The water is extracted and then delivered to the nozzle 8016 through the water inlet pipe 804. At this time, the output shaft of the motor 803 in the running state drives the transmission gear 8013 to rotate. Since the transmission gear 8013 is meshed with the connecting gear 8015, the rotating transmission gear 8013 drives the connecting gear 8015 to rotate, and the rotating connecting gear 8015 drives the nozzle 8016 to rotate. The rotating nozzle 8016 sprays the water on the interior of the tank body 802, thereby reducing the dust of the suspended particles in the exhaust gas inside the tank body 802. After the exhaust gas dust reduction is completed, the exhaust gas is extracted through the second fan 808 in the running state, and then the exhaust gas is delivered to the dust collector 9 through the exhaust pipe 809. The dust collector 9 filters the larger particulate matter in the exhaust gas, and then collects the exhaust gas, thereby achieving the effect of reducing the dust of the small-diameter suspended particulate matter in the exhaust gas.

[0030] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A jet mill tail gas recovery device, characterized in that: It includes: An air flow pulverizer (1) and a dust collector (9), wherein the output end of the air flow pulverizer (1) is fixedly connected to a first connecting pipe (2), the output end of the first connecting pipe (2) is equipped with a cyclone separator (3), the first output end of the cyclone separator (3) is fixedly connected to a second connecting pipe (4), and the second output end of the cyclone separator (3) is fixedly connected to a third connecting pipe (6), the output end of the third connecting pipe (6) is equipped with a collecting box (5), the output end of the second connecting pipe (4) is equipped with a first fan (7), and the output end of the first fan (7) is equipped with a reducing A dust reduction mechanism (8), the dust reduction mechanism (8) is used to reduce dust on suspended particles in exhaust gas; the dust reduction mechanism (8) comprises a nozzle (8016), a tank assembly, a water supply assembly, a drive assembly and an exhaust assembly; the tank assembly is used to temporarily store exhaust gas; the water supply assembly is used to provide water to the nozzle (8016); the drive assembly is used to drive the nozzle (8016) to rotate, and the rotating nozzle (8016) is used to drive the water to spray the exhaust gas; the exhaust assembly is used to extract the exhaust gas from the tank assembly after dust reduction.

2. The tail gas recovery device of a jet mill according to claim 1, characterized in that: The tank assembly comprises an air inlet pipe (801), a tank body (802), an air inlet (8010), an air outlet (8011) and a water outlet pipe (8012); the input end of the air inlet pipe (801) is fixedly connected to the output end of the first fan (7), the air inlet (8010) is fixedly connected to one end of the outer wall of the tank body (802), and the output end of the air inlet pipe (801) is connected to the input end of the air inlet (8010), the air outlet (8011) and the water outlet pipe (8012) are both fixedly connected to the other end of the outer wall of the tank body (802), and the air outlet (8011) is located above the water outlet pipe (8012).

3. The tail gas recovery device of a jet mill according to claim 2, characterized in that: The water supply assembly comprises a water inlet pipe (804), a water tank (805), a water pump (806) and a water suction pipe (807); the water tank (805) is installed on the outside of the tank body (802), the water pump (806) is installed on the top of the water tank (805), the input end of the water suction pipe (807) is connected to the output end of the water tank (805), the output end of the water suction pipe (807) is connected to the input end of the water pump (806), the input end of the water inlet pipe (804) is connected to the output end of the water pump (806), and the output end of the water inlet pipe (804) passes through the interior of the tank body (802).

4. The tail gas recovery device of a jet mill according to claim 3, characterized in that: The driving assembly comprises a motor (803), a transmission gear (8013), a rotating rod (8014) and a connecting gear (8015); the motor (803) is mounted on the top of the tank body (802); the transmission gear (8013) is assembled on the end of the output shaft of the motor (803); the rotating rod (8014) is rotatably mounted on the output end of the water inlet pipe (804); the rotating rod (8014) is hollow in structure; the connecting gear (8015) is assembled on the outer wall of the rotating rod (8014); and the transmission gear (8013) is meshed with the connecting gear (8015).

5. The tail gas recovery device of a jet mill according to claim 2, characterized in that: The exhaust assembly comprises a second fan (808) and an air outlet pipe (809); the second fan (808) is installed at the output end of the air outlet (8011), the air outlet pipe (809) is fixedly connected to the output end of the second fan (808), and the output end of the air outlet pipe (809) is fixedly connected to the input end of the dust collector (9).

6. The tail gas recovery device of a jet mill according to claim 4, characterized in that: The spray head (8016) is mounted on the output end of the rotating rod (8014); the transmission gear (8013) and the connecting gear (8015) in a meshing state are used to drive the rotating rod (8014) to rotate; and the rotating rod (8014) in a rotating state is used to drive the spray head (8016) to rotate.

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