Efficient atomizing, spraying and throwing structure for treating liquid hazardous waste in cement kiln

Abstract

The utility model discloses an efficient atomizing, spraying and throwing structure for treating liquid hazardous waste in a cement kiln, and relates to the technical field of hazardous waste treatment. Comprising a preheater at the front end of the cement kiln, and the preheater is provided with a fixing structure in which a waste liquid spray gun is inserted, so that liquid hazardous waste sprayed by the waste liquid spray gun is sprayed into the preheater through the fixing structure; a scattering and atomizing mechanism is arranged in the preheater, the liquid hazardous waste sprayed by the waste liquid spray gun is scattered and atomized through the scattering and atomizing mechanism, so that the liquid hazardous waste is put into the preheater in an atomized state, and the atomized liquid hazardous waste is fed into a decomposing furnace of a cement kiln through the preheater. According to the device, the liquid hazardous waste is efficiently scattered to be in an atomized state through control, the scattering effect is improved, and therefore the disposal efficiency of the liquid hazardous waste is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hazardous waste disposal, in particular to a high-efficiency atomizing spraying and placing structure for disposing liquid hazardous waste in a cement kiln. Background Art

[0002] The cement kiln co-processing hazardous waste project is gradually achieving the overall goals of reducing hazardous waste, recycling it, and rendering it harmless. Liquid hazardous waste is handled by using a tonnage loading system with a pneumatic diaphragm pump to transport the waste liquid to a preheater. A waste liquid spray gun then sprays the waste liquid into the preheater's decomposition furnace. Under high temperatures, the combustible components in the waste liquid react violently with oxygen in the air, releasing energy and producing high-temperature flue gas and solid residue, ultimately achieving harmless disposal.

[0003] Based on previous experience, if the droplets of waste liquid sprayed into the decomposition furnace are too large, the combustion time will be prolonged, the combustion temperature in the lower part of the furnace will be low, and VOC emissions will exceed the standard. If the droplets are too small, particles in the waste liquid will clog the atomization holes. Controlling the size of the atomized droplets will affect the efficiency of waste liquid disposal, but relying solely on conventional spray guns cannot achieve the desired results.

[0004] Therefore, based on the above technical problems, technicians in this field urgently need to develop an efficient atomizing and spraying structure for disposing liquid hazardous waste in cement kilns. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to provide a high-efficiency atomizing spraying and delivering structure for disposing liquid hazardous waste in a cement kiln.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The utility model discloses a high-efficiency atomizing spraying structure for disposing liquid hazardous waste in a cement kiln, comprising a preheater at the front end of the cement kiln, wherein a fixed structure for plugging a waste liquid spray gun is provided on the preheater, so that the liquid hazardous waste sprayed by the waste liquid spray gun is sprayed into the preheater through the fixed structure;

[0008] A dispersing and atomizing mechanism is provided in the preheater, and the liquid hazardous waste sprayed by the waste liquid spray gun is dispersed and atomized by the dispersing and atomizing mechanism so that the liquid hazardous waste is put into the preheater in an atomized state, and the atomized liquid hazardous waste is sent into the decomposition furnace of the cement kiln through the preheater.

[0009] Furthermore, the fixing structure includes an external flange joint, and a probe pipe extends into the interior of the preheater at the external flange joint;

[0010] The nozzle of the waste liquid spray gun extends from the outside of the preheater through the probe into the inside of the preheater, and the waste liquid spray gun is fixed on the external flange joint.

[0011] Furthermore, the fixed structures are multiple groups with the same structure and are circumferentially distributed around the breaking up atomization mechanism so that the waste liquid spray gun sprays liquid hazardous waste in the direction of the breaking up atomization mechanism.

[0012] Furthermore, the atomization mechanism includes a partition, which is fixedly arranged on the inner side wall of the preheater, and a rotating shaft is passed through the partition. The rotating shaft is rotatably connected to the partition through a bearing, one end of the rotating shaft is located inside the preheater, and the other end extends out of the preheater. A breaking fan blade is provided on the end of the rotating shaft located inside the preheater, and a driving mechanism for driving the rotating shaft to rotate is provided outside the preheater.

[0013] Furthermore, one end of the rotating shaft extending out of the preheater is sealed to the preheater via a rotating sealing ring.

[0014] Furthermore, the scattering blades are a plurality of groups evenly distributed circumferentially on the rotating shaft, and the scattering blades are tilted from the rotating shaft toward a direction away from the rotating shaft.

[0015] Furthermore, the driving mechanism includes a motor bracket arranged outside the preheater, a motor is fixedly mounted on the motor bracket, and a rotating end of the motor is coaxially connected to the rotating shaft.

[0016] In the above technical solution, the high-efficiency atomizing and spraying structure for disposing liquid hazardous waste in cement kilns provided by the utility model has the following beneficial effects:

[0017] The device improves the disposal efficiency of liquid hazardous waste by controlling the efficient dispersion of liquid hazardous waste into an atomized state and improving the dispersion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure of a high-efficiency atomizing spray delivery structure for treating liquid hazardous waste in a cement kiln provided by an embodiment of the present utility model;

[0020] Figure 2A schematic diagram of the distribution of the scattering blades of the high-efficiency atomizing and spraying structure for disposing liquid hazardous waste in a cement kiln provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Preheater; 2. Waste liquid spray gun; 3. External flange joint; 4. Probe tube; 5. Partition; 6. Rotating shaft; 7. Dispersed fan blades; 8. Motor bracket; 9. Motor. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] See also Figure 1-2 The high-efficiency atomization spraying structure for disposing liquid hazardous waste in cement kiln includes a preheater 1 at the front end of the cement kiln. A fixed structure for plugging in a waste liquid spray gun 2 is provided on the preheater 1, so that the liquid hazardous waste sprayed by the waste liquid spray gun 2 is sprayed into the preheater 1 through the fixed structure. That is, the fixed structure is not only a structure for fixing the waste liquid spray gun 2, but also a structure for protecting the waste liquid spray gun 2 and enabling the waste liquid sprayed by the waste liquid spray gun 2 to be sprayed out through the fixed structure position. The disposal of liquid hazardous waste is to use a ton box loading system to transfer the waste to the preheater 1 through a pneumatic diaphragm pump. The waste liquid is transported to the preheater 1, and the waste liquid is sprayed into the preheater 1 and then into the decomposition furnace using the waste liquid spray gun 2. Under high temperature conditions, the combustible components in the waste liquid react violently with the oxygen in the air, releasing energy, producing high-temperature flue gas and solid residue, thereby achieving the purpose of harmless disposal. In order to ensure that the waste liquid entering the kiln can be continuously and stably added and effectively avoid diaphragm pump blockage caused by material crystallization or high viscosity, the existing pneumatic diaphragm pump is replaced with an electric multi-stage centrifugal pump to effectively control the stability of the pumping rate;

[0025] A dispersing and atomizing mechanism is provided in the preheater 1, which disperses and atomizes the liquid hazardous waste sprayed by the waste liquid spray gun 2 so that the liquid hazardous waste is put into the preheater 1 in an atomized state, and the atomized liquid hazardous waste is sent to the decomposition furnace of the cement kiln through the preheater 1.

[0026] The device controls the liquid hazardous waste to be efficiently dispersed into an atomized state through a dispersion atomization mechanism, and improves the dispersion effect, thereby improving the disposal efficiency of the liquid hazardous waste.

[0027] Furthermore, the fixing structure includes an external flange joint 3, at which a probe tube 4 is extended into the interior of the preheater 1. The probe tube 4 is sleeved on the outside of the injection head of the waste liquid spray gun 2 to play a protective role, thereby increasing the service life of the waste liquid spray gun 2 and fixing the injection direction of the injection head of the waste liquid spray gun 2.

[0028] The nozzle of the waste liquid spray gun 2 extends from the outside of the preheater 1 into the inside of the preheater 1 through the probe 4. The waste liquid spray gun 2 is fixed on the external flange joint 3 to complete the fixation of the waste liquid spray gun 2.

[0029] Furthermore, the fixed structure is composed of multiple groups of identical structures and is circumferentially distributed around the dispersion atomization mechanism so that the waste liquid spray gun 2 sprays liquid hazardous waste in the direction of the dispersion atomization mechanism. Finally, the waste liquid sprayed by the waste liquid spray gun 2 is efficiently dispersed by the dispersion atomization mechanism.

[0030] Furthermore, the atomizing mechanism includes a partition 5, which is fixedly mounted on the inner side wall of the preheater 1. A rotating shaft 6 is passed through the partition 5. The rotating shaft 6 is rotatably connected to the partition 5 through a bearing. One end of the rotating shaft 6 is located inside the preheater 1 and the other end extends out of the preheater 1. A dispersing fan blade 7 is provided on the end of the rotating shaft 6 located inside the preheater 1. A driving mechanism for driving the rotating shaft 6 to rotate is provided outside the preheater 1. The rotating shaft 6 is driven by the driving mechanism to rotate, thereby driving the dispersing fan blade 7 to rotate at high speed to disperse the waste liquid ejected from the waste liquid spray gun 2 to form atomized waste liquid. At this time, the partition 5 plays a protective role because the dispersing fan blade 7 is arranged close to the inner wall of the preheater 1 on one side. Therefore, the partition 5 blocks the waste liquid from splashing onto the inner wall of the preheater 1 in large quantities, and the partition 5 also plays the role of supporting the rotating shaft 6. The degree of waste liquid dispersion is controlled by controlling the speed at which the driving mechanism drives the rotating shaft 6 to rotate.

[0031] Furthermore, one end of the rotating shaft 6 extending out of the preheater 1 is sealed with the preheater 1 by a rotating sealing ring, so that the preheater 1 remains sealed at the position of the rotating shaft 6 .

[0032] Furthermore, the scattering blades 7 are arranged in a plurality of groups uniformly distributed circumferentially on the rotating shaft 6. The scattering blades 7 are inclined from the rotating shaft 6 toward a direction away from the rotating shaft 6 to form a conical structure frame composed of a plurality of groups of scattering blades 7, which can drive the waste liquid to be atomized in a conical shape, thereby improving the atomization effect. More specifically, the inclination angle of the plurality of groups of scattering blades 7 can be adjusted to control the angle of the conical surface, thereby controlling the atomization shape of the waste liquid to avoid being sprayed onto the inner wall of the preheater 1, thereby realizing efficient atomization operation of the waste liquid.

[0033] Furthermore, the driving mechanism includes a motor bracket 8 arranged outside the preheater 1, and a motor 9 is fixedly mounted on the motor bracket 8. The rotating end of the motor 9 is coaxially connected to the rotating shaft 6, and the rotating shaft 6 is driven to rotate by the motor 9, and the rotation speed is controlled to control the rotation speed of the breaking up fan blades 7, thereby controlling the degree of breaking up of the waste liquid.

[0034] In summary, the device improves the disposal efficiency of liquid hazardous waste by controlling the efficient dispersion of liquid hazardous waste into an atomized state and improving the dispersion effect.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An efficient atomizing spraying structure for disposing liquid hazardous waste in a cement kiln, comprising a preheater (1) at the front end of the cement kiln, characterized in that: The preheater (1) is provided with a fixed structure for plugging in a waste liquid spray gun (2), so that the liquid hazardous waste sprayed by the waste liquid spray gun (2) is sprayed into the preheater (1) through the fixed structure; A dispersing and atomizing mechanism is provided in the preheater (1), and the liquid hazardous waste sprayed by the waste liquid spray gun (2) is dispersed and atomized by the dispersing and atomizing mechanism, so that the liquid hazardous waste is put into the preheater (1) in an atomized state, and the atomized liquid hazardous waste is sent to the decomposition furnace of the cement kiln through the preheater (1).

2. The high-efficiency atomizing spraying structure for disposing liquid hazardous waste in cement kilns according to claim 1 is characterized in that: The fixing structure comprises an external flange joint (3), and a probe (4) extends into the interior of the preheater (1) at the external flange joint (3); The nozzle of the waste liquid spray gun (2) extends from the outside of the preheater (1) through the probe (4) into the inside of the preheater (1), and the waste liquid spray gun (2) is fixed on the external flange joint (3).

3. The high-efficiency atomizing spraying structure for disposing liquid hazardous waste in cement kilns according to claim 1 is characterized in that: The fixed structures are multiple groups with the same structure and are circumferentially distributed around the scattering atomization mechanism so that the waste liquid spray gun (2) sprays liquid hazardous waste in the direction of the scattering atomization mechanism.

4. The high-efficiency atomizing spraying structure for disposing liquid hazardous waste in cement kilns according to claim 1 is characterized in that: The atomizing mechanism comprises a partition (5) fixedly arranged on the inner side wall of the preheater (1); a rotating shaft (6) is passed through the partition (5); the rotating shaft (6) is rotatably connected to the partition (5) via a bearing; one end of the rotating shaft (6) is located inside the preheater (1) and the other end extends out of the preheater (1); a dispersing fan blade (7) is provided on the end of the rotating shaft (6) located inside the preheater (1); and a driving mechanism for driving the rotating shaft (6) to rotate is provided outside the preheater (1).

5. The high-efficiency atomizing spraying structure for disposing liquid hazardous waste in cement kilns according to claim 4 is characterized in that: One end of the rotating shaft (6) extending from the preheater (1) is sealed to the preheater (1) via a rotating sealing ring.

6. The high-efficiency atomizing spraying structure for disposing liquid hazardous waste in cement kilns according to claim 4 is characterized in that: The scattering blades (7) are multiple groups evenly distributed in the circumferential direction and arranged on the rotating shaft (6). The scattering blades (7) are arranged tilted from the rotating shaft (6) in a direction away from the rotating shaft (6).

7. The high-efficiency atomizing spraying structure for disposing liquid hazardous waste in cement kilns according to claim 4 is characterized in that: The driving mechanism comprises a motor bracket (8) arranged outside the preheater (1), a motor (9) being fixedly arranged on the motor bracket (8), and a rotating end of the motor (9) being coaxially connected to the rotating shaft (6).

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