Waste heat boiler for zinc oxide
By designing a waste heat boiler for zinc oxide, dust filtering and heat exchange using ash filter and heat pipes, the problems of waste heat utilization and particulate treatment of flue gas at the tail of the rotary kiln are solved, and the effects of dust removal and heat recovery are achieved.
Patent Information
- Application Number
- CN202420514070.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The prior art is difficult to effectively utilize the waste heat of the flue gas at the tail of the rotary kiln, and it is impossible to effectively treat particulate matter in the discharged exhaust gas, resulting in heat loss and pollution problems.
A waste heat boiler for zinc oxide is designed, including the main body of the waste heat boiler, a heat exchange chamber, a heat absorption chamber and ash collection chamber. The dust is filtered and vibrated through the ash filter net and polarization motor, the heat pipe is exchanged for heat, and the spiral rod conveys dust. , use high-temperature gas to absorb heat and heat water.
The equipment has achieved good dust removal effect and significant heat absorption effect, reduced heat loss, and met the needs of waste heat recovery and particulate matter treatment.
Smart Images
Figure CN222364414U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of waste heat recovery for zinc oxide, in particular to a waste heat boiler for zinc oxide. Background Art
[0002] During the production process, the temperature of the flue gas discharged from the tail of the rotary kiln is high. In order to make full use of the waste heat of the flue gas at the tail of the rotary kiln and cool the high-temperature flue gas to meet the emission standards, it is necessary to install waste heat utilization equipment after the rotary kiln. While recovering the waste heat, it is also necessary to treat the exhaust gas and collect and treat the harmful particulate matter. Therefore, in order to solve the problems of waste heat recovery and particulate matter treatment, we designed a waste heat boiler for zinc oxide. Utility Model Content
[0003] The utility model aims to overcome the deficiencies of the prior art, meet the actual needs, and provide a waste heat boiler for zinc oxide, comprising a waste heat boiler body, a heat exchange bin, a heat absorption bin and an ash collecting bin; the waste heat boiler body is divided into two upper and lower chambers by a middle partition, the upper chamber is the heat exchange bin, and the lower chamber is the heat absorption bin; an ash collecting bin is arranged in the heat absorption bin, an opening is arranged above the ash collecting bin, an ash filter net is arranged at the opening, and the heat exchange components arranged in the heat exchange bin and the heat absorption bin correspond to the ash filter net above; the heat exchange bin is filled with clean water, and water inlets and outlets for clean water are arranged on both sides of the heat exchange bin; one side of the ash collecting bin is connected with an air inlet pipe, and the air inlet pipe extends all the way to the outside of the heat absorption bin; one side of the upper end of the heat absorption bin is connected with an air outlet pipe.
[0004] Two expansion heat exchange chambers connected to the waste heat boiler body are arranged on both sides above the waste heat boiler body; the two expansion heat exchange chambers are respectively provided with a water inlet and a water outlet.
[0005] An ash discharge trough is provided at the bottom of the ash collecting bin, and an ash discharge pipe connected with the ash discharge trough is provided on the outside of the ash collecting bin. The ash discharge pipe extends to the outside of the heat absorption bin, and an ash discharge port is provided at the bottom of the extended end thereof. An ash discharge spiral rod is provided in the ash discharge trough and the ash discharge pipe, and the ash discharge spiral rod is driven by a motor at the end of the ash discharge pipe.
[0006] The heat exchange element is a heat pipe, a plurality of heat pipes are inserted into the partition array, the heat absorbing end of the heat pipe is arranged in the heat absorbing bin, and the heat releasing end of the heat pipe is arranged in the heat exchange bin.
[0007] The circular array outside the heat pipe has a plurality of metal fins along the length direction thereof for accelerating heat exchange.
[0008] Polarization motors are arranged around the lower side of the ash filter screen.
[0009] The beneficial effects of the utility model are:
[0010] The exhaust gas with a relatively high temperature enters the ash collecting bin through the intake pipe, and the air passes through the ash filter to filter the ash. The dust remains in the ash collecting bin, and part of the dust on the ash filter is shaken off by the polarization motor to prevent blockage. The dust is sent out through the spiral conveying rod, and the high-temperature gas absorbs a large amount of heat in the heat absorption bin, and finally discharges the low-temperature gas. The absorbed heat heats the water. The equipment has good dust removal and heat absorption effects, reducing heat loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model is further described below in conjunction with the accompanying drawings and implementation cases.
[0012] Figure 1 It is a schematic diagram of the utility model when in use;
[0013] Figure 2 It is an internal schematic diagram of the utility model. DETAILED DESCRIPTION
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0015] See also Figure 1-2 .
[0016] The utility model discloses a waste heat boiler for zinc oxide, comprising a waste heat boiler body 1, a heat exchange bin 2, a heat absorption bin 3 and an ash collecting bin 4; the waste heat boiler body is divided into two upper and lower chambers by a middle partition 5, the upper chamber is the heat exchange bin, and the lower chamber is the heat absorption bin; an ash collecting bin is arranged in the heat absorption bin, an opening is arranged above the ash collecting bin, an ash filter net 6 is arranged at the opening, and the heat exchange components arranged in the heat exchange bin and the heat absorption bin correspond to the ash filter net 6 above; the heat exchange bin is filled with clean water, and a water inlet 7 and a water outlet 8 for clean water are arranged on both sides of the heat exchange bin; one side of the ash collecting bin is connected with an air inlet pipe 9, and the air inlet pipe extends all the way to the outside of the heat absorption bin; one side of the upper end of the heat absorption bin is connected with an air outlet pipe 10.
[0017] Two expansion heat exchange chambers 11 in communication with the waste heat boiler body are arranged on both sides above the waste heat boiler body; the two expansion heat exchange chambers are respectively provided with a water inlet and a water outlet.
[0018] An ash discharge trough 12 is provided at the bottom of the ash collecting bin, and an ash discharge pipe 13 connected with the ash discharge trough is provided on the outside of the ash collecting bin. The ash discharge pipe extends to the outside of the heat absorption bin, and an ash discharge port 14 is provided at the bottom of the extended end. An ash discharge spiral rod 15 is provided in the ash discharge trough and the ash discharge pipe, and the ash discharge spiral rod is driven by a motor 16 at the end of the ash discharge pipe.
[0019] The heat exchange element is a heat pipe 17, and a plurality of heat pipes are inserted into the partition array. The heat absorbing end of the heat pipe is arranged in the heat absorbing bin, and the heat releasing end of the heat pipe is arranged in the heat exchange bin.
[0020] The circular array outside the heat pipe has a plurality of metal fins 18 along its length to accelerate heat exchange.
[0021] Polarization motors 19 are arranged around the lower part of the ash filter screen.
[0022] The above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent transformation made by using the contents of the specification and drawings of the present utility model or directly or indirectly applied in the relevant technical field is also included in the patent protection scope of the present utility model.
Claims
1. A waste heat boiler for zinc oxide, characterized in that: The invention comprises a waste heat boiler body (1), a heat exchange bin (2), a heat absorption bin (3) and an ash collection bin (4); the waste heat boiler body is divided into two upper and lower bins by a middle partition (5), the upper bin is the heat exchange bin, and the lower bin is the heat absorption bin; an ash collection bin is arranged in the heat absorption bin, an opening is arranged above the ash collection bin, an ash filter net (6) is arranged at the opening, and the heat exchange components arranged in the heat exchange bin and the heat absorption bin are arranged above the ash filter net (6); the heat exchange bin is filled with clean water, and clean water inlets (7) and outlets (8) are arranged on both sides of the heat exchange bin; one side of the ash collection bin is connected to an air inlet pipe (9), and the air inlet pipe extends to the outside of the heat absorption bin; one side of the upper end of the heat absorption bin is connected to an air outlet pipe (10).
2. A waste heat boiler for zinc oxide according to claim 1, characterized in that: Two expansion heat exchange chambers (11) in communication with the waste heat boiler body are arranged on both sides above the waste heat boiler body; the two expansion heat exchange chambers are respectively provided with a water inlet and a water outlet.
3. A waste heat boiler for zinc oxide according to claim 1, characterized in that: An ash discharge trough (12) is provided at the bottom of the ash collecting bin, an ash discharge pipe (13) connected to the ash discharge trough is provided on the outside of the ash collecting bin, the ash discharge pipe extends to the outside of the heat absorbing bin, and an ash discharge port (14) is provided at the bottom of the extended end thereof, an ash discharge screw rod (15) is provided in the ash discharge trough and the ash discharge pipe, and the ash discharge screw rod is driven by a motor (16) at the end of the ash discharge pipe.
4. A waste heat boiler for zinc oxide according to claim 1, characterized in that: The heat exchange element is a heat pipe (17), a plurality of heat pipes are inserted into the partition array, the heat absorbing end of the heat pipe is arranged in the heat absorbing bin, and the heat releasing end of the heat pipe is arranged in the heat exchange bin.
5. A waste heat boiler for zinc oxide according to claim 4, characterized in that: The circular array outside the heat pipe has a plurality of metal fins (18) along its length direction for accelerating heat exchange.
6. A waste heat boiler for zinc oxide according to claim 1, characterized in that: Polarization motors (19) are arranged around the lower side of the ash filter screen.